PC Connector Solutions LLC (“PC Connector”) appeals from the decision of the *1361 United States District Court for the Middle District of Florida granting summary judgment of noninfringement of United States Patent 5,224,216 in favor of Smart-Disk Corporation and Fuji Photo Film U.S.A., Inc. (collectively, “SmartDisk”). PC Connector Solutions LLC v. SmartDisk Corp., No. 2:00-CV-539 (M.D.Fla. Nov. 10, 2003) (original judgment); PC Connector Solutions LLC v. SmartDisk Corp., No. 2:00-CV-539 (M.D.Fla. Feb. 23, 2005) (amended judgment). Because the district court did not err in granting summary judgment, we affirm.
BACKGROUND
PC Connector sued SmartDisk for infringement of the ’216 patent, which is directed to the connection of peripherals to a computer via a coupler inserted into the diskette drive. The salient features of the invention are set forth in claims 1 and 10, the only claims at issue on appeal, which read in relevant part as follows:
1. In combination a computer having a diskette drive, an end user computer peripheral device having an input/output рort normally connectible to a conventional computer input/output port, and a coupler which couples the computer with the end user computer peripheral device without using a conventional computer inpuVoutput port:
said coupler being sized and shaped for insertion within the diskette drive of the computer ... whereby data is transferred from said computer to said end user computer peripheral device via said read/write head of said comрuter, said coupler, and said inpuVoutput port of said end user computer peripheral device.
’216 patent, col. 6,11. 38-58 (emphasis added).
10. A method for forming a data transfer coupling between a computer having a diskette drive having a read/write head and an inpuVoutput port of one separate end user computer peripheral of a host of separate end user computer peripherals where each separate end user computer peripheral is traditionally connectable to a computer by means of an input/output port of the computer and the standard input/output port of the particular separate computer peripheral, said method comprising:
inserting a coupler having a stationary data transfer element into the diskette drive ..., and
connecting said coupler to the standard input/output port of the separate computer peripheral ....
Id., col. 8, ll. 1-19 (emphasis added). The accused devices are various diskette-shaped, sleeve-like adapters for flash memories and smart cards that allow such media to be accessed through a diskette drive: a flash memory or a smart card is first inserted wholly within the adapter, which is then inserted into a diskette drive, whereupon the adapter fаcilitates data transfer between its resident flash memory or smart card and the computer. (Martin Aff. ¶¶12-13; J.A. 264-65).
SmartDisk moved for summary judgment of noninfringement. The matter was referred to a magistrate judge who, relying on the analysis in
Kopykake Enters., Inc. v. Lucks Co.,
PC Connector appealed. We have jurisdiction 3 pursuant to 28 U.S.C. § 1295(a)(1).
DISCUSSION
We review
de novo
the district court’s grant of summary judgment of non-infringement.
Ethicon Endo-Surgery, Inc. v. United States Surgical Corp.,
A. Claim Construction
Claim construction is a question of law that we review without deference.
Cybor Corp. v. FAS Techs., Inc.,
PC Connector accuses the district court of having improperly construed the terms “normally connectible” and “conventional” in claim 1, and “traditionally connectable” and “standard” in claim 10, as fixing the peripherals and computer I/O ports described by such terms to be those in existence at the time of filing in 1988. According to PC Connector, the terms merely clarify the manner of connecting *1363 peripherals to a computer — i.e., through dedicated I/O ports typically clustered at the rear of the chassis — without imposing a time-based limitation on the I/O technologies involved. We disagree.
PC Connector essentially advances a construction that would require the words “normally,” “conventional,” “traditionally,” and “standard” to be redefined as specifically referring to — оr, depending on the context, synonymous with being connectable to — a dedicated computer I/O port. We conclude that the record is unable to support this departure from the ordinary meanings of those words, whose descriptive proрerties are implicitly time-dependent. A claim cannot have different meanings at different times; its meaning must be interpreted as of its effective filing date.
See Markman v. Westview Instruments, Inc.,
We find nothing in the written descriptiоn that amounts to a clear attempt by the patentee to impart any special meaning to the words “normally,” “conventional,” “traditionally,” or “standard.” Likewise, in the prosecution history, we do not read the patentability arguments that were mаde specifically to distinguish a test fixture as having effected the particular redefinition now advanced on appeal. As a consequence, the terms “normally,” “conventional,” “traditionally,” and “standard” are governed by their ordinary and custоmary meanings, and that, in view of their implicit time-dependence, the district court did not err in construing the literal scope of the claim limitations qualified by those terms as being limited to technologies existing at the time of the invention.
PC Connector’s argument that the dictionary definitions of “normally,” “conventional,” “traditionally,” and “standard” contain no explicit reference to a time limitation is not persuasive, as their time-related significance is implicit from their ordinary usage — just as other words are implicitly not time-related. A comparison of the words “conventional” and “dedicated” is instructive in this regard, as PC Connector’s briefs appear to treat them as interchangeable and coterminous in claim scope, when, in fact, they are not. To illustratе, a present-day USB port may be described as a “dedicated” I/O port within the ordinary meaning of “dedicated” as that word would be used to characterize the I/O ports found on a computer built in 1988, yet it would not be considered “conventional” back then, even though it is “conventional” today. (Martin Aff. ¶ 11; J.A. 264). Thus, unlike the word “dedicated,” the word “conventional” necessarily *1364 has a meaning specific to the time of filing. Accordingly, the district court did not err in its claim construction.
B. Infringement
Given its claim construction, the district cоurt found no genuine issue of material fact on the infringement question, and thus held that there was no literal infringement. Summary judgment on the issue of infringement is'proper when no reasonable jury could find that every limitation recited in a properly construed claim еither is or is not found in the accused device either literally or under the doctrine of equivalents.
Bai v. L & L Wings, Inc.,
Claim 1 requires that the peripheral device used with the claimed coupler have “an input/output port normally connectible to a conventional computer input/output port,” while claim 10 similarly requires the peripheral device to have a “standard input/output port” that is “traditionally connectable to a computer.”' Properly construed, these claim limitations require the peripheral device to be connectable to a computer I/O port that was in common use at the time of filing in 1988.
Because the flash memories and smart cards that are used with the accused devices employ flat, planar surface contact electrodes at the I/O interface, (Martin Aff. ¶¶ 25-27; J.A. 273-74), which, to even a casuаl observer, cannot be connected to a vintage 1988 computer I/O port that uses a multi-pin connector, there can be no literal infringement. 4 See Builders Concrete, Inc. v. Bremerton Concrete Prods. Co., 757, F.2d 255, 257 (Fed.Cir.1985) (“Literal infringement requires that the accused device embody every element of the claim.”).
As for infringement under the doctrine of equivalents, that argument is not properly before us. Having presented the district court with only conclusory statements regarding equivalence, without any pаrticularized evidence and linking argument as to the “insubstantiality of the differences” between the claimed invention and the accused device, or with respect to the “function, way, result” test, PC Connector is now foreclosed from invoking the substantive -application of the doctrine of equivalents.
Texas Instruments Inc. v. Cypress Semiconductor Corp.,
Even if there were not such a foreclosure, a finding of equivalence in this case would effectively vitiate the time-related limitation on the I/O ports, if what is “normally connectible,” “conventional,” “traditionally connectable,” and “standard” at the time of filing were deemed to be equivalent to what is “normally connectible,” “conventional,” “traditionally conneet
*1365
able,” and “standard at а future date. As a matter of law, there can be no infringement under the doctrine of equivalents “[i]f a theory of equivalence would vitiate a claim limitation.”
Tronzo v. Biomet, Inc.,
We have considered the parties’ other arguments and conclude that they are either unpersuasive or unnecessary for resolution of this appeal.
CONCLUSION
For the foregoing reasons, we conclude that the grant of summary judgment of noninfringement was not error, and accordingly affirm.
AFFIRMED.
Notes
. The '216 patent issued from a continuation application whose parent had been filed in 1988. The accused devices were developed in the 1990s. (Martin Aff. ¶ 14; J.A. 265-66).
. Because the district court аdopted the magistrate judge's report and recommendation, we shall refer to the magistrate judge's findings and conclusions as those of the district court.
. While SmartDisk’s counterclaims asserted both noninfringement and invalidity, the ruling granting summary judgment of nonin-fringement initially cоntained no reference to the invalidity counterclaim. During oral argument, counsel for both parties recognized the pendency of the invalidity counterclaim, and the consequent likelihood of a jurisdictional defect in the absence of a certification under Federal Rule of Civil Procedure 54(b). The parties thereafter obtained an amended judgment from the district court dismissing the counterclaim,
nunc pro tunc,
which ripened the appeal. See
Storage Tech. Corp. v. Cisco Sys., Inc.,
. Because connector incompatibility is dis-positive of the infringement issue for claim 10, we need not address SmartDisk’s argument regarding an alleged order of the method steps, which it advances as an alternative ground for affirming the finding of nonin-fringement.
