MPEP § 709
Suspension of action (37 CFR 1.103 ) should not be confused with extension of time for reply (37 CFR 1.136 ). It is to be noted that a suspension of action applies to an impending Office action by the examiner whereas an extension of time for reply applies to action by the applicant. In other words, the action cannot be suspended in an application which contains an outstanding Office action or requirement awaiting reply by the applicant. It is only the action by the examiner which can be suspended under 37 CFR 1.103.
Suspension of action under 37 CFR 1.103(a) - (d) at the applicant’s request will cause a reduction in patent term adjustment accumulated (if any) under 37 CFR 1.703. The reduction is equal to the number of days beginning on the date a request for suspension of action was filed and ending on the date of the termination of the suspension. See 37 CFR 1.704(c)(1).
| Request, 37 CFR Section | Requirement | Fee(s), 37 CFR Section | Maximum length of Suspension |
|---|---|---|---|
| 1.103(a) | Petition with a showing of good and sufficient cause. | 1.17(g) | 6 months |
| 1.103(b) | Request at the time of filing a CPA | 1.17(i) | 3 months |
| 1.103(c) | Request at the time of filing an RCE | 1.17(i) | 3 months |
| 1.103(d) | See below in "Deferral of Examination" | 1.17(i) & 1.18(d) | 3 yrs. from earliest filing date for which a benefit is claimed under Title 35. |
A request that action in an application be delayed will be granted only under the provisions of 37 CFR 1.103, which provides for "Suspension of Action." A petition for suspension of action under 37 CFR 1.103(a) must:
If the requirements of 37 CFR 1.103(a) are met, the Office may grant the suspension of action for the specified period not to exceed six months. The suspension under 37 CFR 1.103(a) will begin on the day the request is filed. If the requirements of 37 CFR 1.103(a) are not met, applicants should expect that their applications, whether new or amended, will be taken up for action by the examiner in the order provided in MPEP § 708, Order of Examination.
The showing of good and sufficient cause should specifically explain what factors directly impact the applicant’s ability to presently prosecute the application for which the suspension of action has been requested. A statement referring to general circumstances (e.g. the world is experiencing a global pandemic) may not be found to be good and sufficient without a specific explanation of how these circumstances impact the application under examination. Non-limiting examples where good and sufficient cause may be found are:
A petition for suspension of action to allow applicant time to submit an information disclosure statement will be dismissed as failing to present good and sufficient reasons, since 37 CFR 1.97 provides adequate recourse for the timely submission of prior art for consideration by the examiner. Other non-limiting situations where a suspension request may be dismissed due to a lack of good and sufficient cause are:
In new applications, the mere inclusion in the transmittal form letter of a request that action be delayed cannot be relied upon to avoid immediate action in the application. However, applicant may consider filing a request for deferral of examination under 37 CFR 1.103(d) (see below for the requirements). Applicants should be aware of the possibility of requesting suspension of action by the Office under 37 CFR 1.103(b) or (c) for a period not exceeding three months at the time of filing a continued prosecution application (CPA) under 37 CFR 1.53(d) if the application is a design application, or a request for continued examination (RCE) under 37 CFR 1.114. Note that effective July 14, 2003, CPA practice does not apply to utility and plant applications. Many Technology Center (TC) art units and examiners have short pendency to first action, and new applications may be taken up for action before preliminary amendments are filed in those applications. Where a preliminary amendment and petition to suspend action have been filed, it would be helpful to telephone the examiner in that regard to avoid having the amendment and the first Office action cross in the mail. The following form paragraphs should be used to notify the grant or denial of the petition under 37 CFR 1.103(a):
Pursuant to applicant’s request filed on [1], action by the Office is suspended on this application under 37 CFR 1.103(a) for a period of [2] months. At the end of this period, applicant is required to notify the examiner and request continuance of prosecution or a further suspension. See MPEP § 709.
1. Maximum period for suspension is 6 months.
2. Only the Technology Center Director can grant second or subsequent suspensions. See MPEP § 1002.02(c). Such approval must appear on the Office letter.
Applicant’s request filed [1], for suspension of action in this application under 37 CFR 1.103(a), is dismissed as being improper. Action cannot be suspended in an application awaiting a reply by the applicant. See MPEP § 709.
A supplemental reply will be entered if it is filed within the period during which action is suspended by the Office under 37 CFR 1.103(a). See MPEP § 714.03(a) regarding supplemental reply.
Applicants may request a suspension of action by the Office under 37 CFR 1.103(b) or (c) for a period not exceeding three months in a continued prosecution application (CPA) filed under 37 CFR 1.53(d) if the application is a design application, or in a continued examination (RCE) filed under 37 CFR 1.114. The request for suspension must be filed at the time of filing of the CPA or RCE.
A supplemental reply will be entered if it is filed within the period during which action is suspended by the Office under 37 CFR 1.103(c). See MPEP § 714.03(a) regarding supplemental reply.
The Office will not grant the requested suspension of action unless the following requirements are met:
If the Office assigns a filing date to the design CPA, the request for suspension will be processed, even if the CPA was not accompanied by the CPA basic filing fee, the search fee, and the examination fee. The suspension request acts to suspend a first Office action by the examiner but will not affect the processing of the CPA for a missing part. The applicant will be given a notice that provides a time period of 2 months from the date of the notification to pay the CPA basic filing fee, the search fee, the examination fee, and the surcharge set forth in 37 CFR 1.16(f). Applicant must pay the CPA basic filing fee, the search fee, the examination fee, and the surcharge within 2 months to avoid the abandonment of the CPA. Pursuant to applicant’s request for suspension, the action by the Office will be suspended on the CPA for the period requested by the applicant, starting on the filing date of the CPA.
If the CPA or the RCE is improper (e.g., a filing date was not accorded in the CPA or the RCE was filed without a submission or the RCE fee), the Office will not recognize the request for suspension, and action by the Office will not be suspended. A notice of improper CPA or RCE will be sent to applicant as appropriate. The time period set in the previous Office communication (e.g., a final Office action or a notice of allowance) continues to run from the mailing date of that communication. If applicant subsequently files another RCE, the request for suspension should be resubmitted to ensure that the Office processes the request for suspension properly. The request for suspension of action will not be processed until the Office accords a filing date to the CPA or receives a proper RCE in compliance with 37 CFR 1.114.
If the CPA or the RCE is properly filed, but the request for suspension is improper (e.g., the request for suspension was filed untimely or without the processing fee set forth in 37 CFR 1.17(i) ), action by the Office will not be suspended on the application. The Office will process the CPA or RCE and place the application on the examiner’s docket. The examiner will notify the applicant of the denial of the request in the next Office communication using the following form paragraph:
Applicant’s request filed [1], for suspension of action in this application under 37 CFR 1.103(b) or (c) is dismissed as being improper. The request was (1) not filed at the time of filing a CPA or RCE, and/or (2) not accompanied by the requisite fee as set forth in 37 CFR 1.17(i). See MPEP § 709.
In bracket 1, insert the filing date of the request for suspension of action.
If the CPA or the RCE and the request for suspension of action are proper, the Office’s technical support staff will process the CPA or RCE, and the request for suspension of action. A notification of the approval of the request for suspension will be sent to the applicant. The application will be placed in suspension status until the end of the suspension period. The suspension request acts to suspend a first Office action by the examiner. Once the suspension period has expired, the application will be placed on the examiner’s docket for further prosecution.
In new applications, applicants may request a deferral of examination under 37 CFR 1.103(d) for a period not extending beyond three years from the earliest filing date for which a benefit is claimed under 35 U.S.C. 119(a)-(d), (e), (f), 120, 121, 365, or 386. The request must be filed before the Office issues an Office action under 35 U.S.C. 132 or a notice of allowance in the application. The suspension will start on the day that the Office grants the request for deferral of examination. Once the deferral of examination has been granted, the application will not be taken up for action by the examiner until the suspension period expires. For example, if an applicant files a request for deferral of examination under 37 CFR 1.103(d) for the maximum period permitted under the rule in an application that claims priority of a foreign application, the action by the Office on the application will be deferred for 36 months from the filing date of the foreign application, at which point the application will automatically be queued for docketing based upon the order in which the application was filed in the USPTO.
Form PTO/SB/37 (reproduced at the end of this section) may be used to submit a request for deferral of examination under 37 CFR 1.103(d).
A request for deferral of examination under 37 CFR 1.103(d) must include:
The Office will not grant a deferral of examination unless the following conditions are met:
If the request is improper, the following form paragraphs may be used to notify the applicant of the denial of the request:
Applicant’s request filed on [1], for deferral of examination under 37 CFR 1.103(d) in the application is denied as being improper. [2]
See MPEP § 709.
1. In bracket 1, insert the filing date of the request for deferral of examination.
2. In bracket 2, insert the reason(s) for denying the request. For example, if appropriate insert --The applicant has not filed a request under 37 CFR 1.213(b) to rescind the previously filed nonpublication request--; --A first Office action has been issued in the application--; or --Applicant has not submitted a request for voluntary publication under 37 CFR 1.221 --.
A supervisory patent examiner’s approval is required for the grant of a deferral of examination in an application. If the request is proper, the following form paragraph may be used to notify applicant that the request for deferral has been granted:
Applicant’s request filed on [1], for deferral of examination under 37 CFR 1.103(d) in the application has been approved. The examination of the application will be deferred for a period of [2] months.
1. In bracket 1, insert the filing date of the request for deferral of examination.
2. In bracket 2, insert the number of months for the deferral.
Once the request for suspension of action under 37 CFR 1.103 has been approved, action on the application will be suspended until the suspension period has expired, unless the applicant submits a request for termination of the suspension of action prior to the end of the suspension period. The request for termination of a suspension of action will be effective when an appropriate official of the Office takes action thereon. If the request for termination properly identifies the application and the period of suspension has not expired when the Office acts on the request, the Office will terminate the suspension and place the application on the examiner’s docket. An acknowledgment should be sent to the applicant using the following form paragraph:
Applicant’s request filed on [1], for termination of a suspension of action under 37 CFR 1.103, has been approved. The suspension of action has been terminated on the date of mailing this notice.
In bracket 1, insert the filing date of the request for termination of the suspension of action.
Suspension of action at the initiative of the Office should be avoided, if possible, because such suspension will cause delays in examination, will increase pendency of the application, and may lead to a shortening of the effective patent term or, conversely, patent term extension, or adjustment, due to the suspension. Once a suspension of action has been initiated, it should be terminated immediately once the reason for initiating the suspension no longer exists, even if the suspension period has not expired.
37 CFR 1.103(e) provides that the Office will notify applicant if the Office suspends action in an application on its own initiative. Every suspension of action initiated by the Office will be limited to a time period of a maximum of 6 months. An examiner may grant an initial suspension of Office action on their own initiative, as in MPEP § 709.01 and MPEP Chapter 2300, for a maximum period of 6 months. A notification of suspension must be mailed to the applicant for each Office-initiated suspension of action, even for second or subsequent suspensions, and must include a suspension period (a maximum of 6 months). When the suspension period has expired, the examiner should take up action on the application or evaluate all possibilities for giving an action on the merits. For example, if a reference is still not available after waiting for six months, the examiner should try to find another source for the information or update the search to find another reference that can be used to make a rejection. If, in an extraordinary circumstance, a second or subsequent suspension is necessary, the examiner must obtain the TC director’s approval (see MPEP § 1003) and prepare another suspension notification with a suspension period (a maximum of 6 months). The notification for a second or subsequent suspension must be signed by the TC Director.
Suspension of action under 37 CFR 1.103(f) is decided by the TC Director who oversees Licensing and Review.
The following form paragraphs should be used in actions relating to suspension of action at the initiative of the Office.
A reference relevant to the examination of this application may soon become available. Ex parte prosecution is SUSPENDED FOR A PERIOD OF [1] MONTHS from the mailing date of this letter. Upon expiration of the period of suspension, applicant should make an inquiry as to the status of the application.
1. Maximum period for suspension is six months.
2. The TC Director must approve all second or subsequent suspensions, see MPEP § 1003.
3. The TC Director’s signature must appear on the letter granting any second or subsequent suspension.
All claims are allowable. However, due to a potential interference, ex parte prosecution is SUSPENDED FOR A PERIOD OF [1] MONTHS from the mailing date of this letter. Upon expiration of the period of suspension, applicant should make an inquiry as to the status of the application.
1. Maximum period for suspension is six months.
2. The TC Director must approve all second or subsequent suspensions, see MPEP § 1003.
3. The TC Director’s signature must appear on the letter granting any second or subsequent suspension.


In general, examiners should not consider ex parte questions which are pending before the Office in inter partes proceedings involving the same applicant. This situation may arise when at least one application or patent of the same applicant that is involved in an interference, derivation proceeding, inter partes reexamination or inter partes review contains claims which overlap with claims of an application (original or reissue) under examination or with claims involved in an ex parte reexamination proceeding. An examiner should consult with the TC Quality Assurance Specialist to determine the appropriate course of action.