In September 1968 plaintiff Canadian Filters (Harwich) Limited, a Canadian corporation, hereinafter Filters, filed in the district court for the District
It appears that for some time prior to Septеmber 1968 the parties had been in disagreement regarding the propriety of Filters’ conduct, more exactly, perhaps, as to the validity of Lear’s patents. The present question is whether Filters, as a result of a three weeks’ start so far as litigation is conсerned, can delay, if not prevent, Lear from determining the validity of its Canadian patent in the Canadian courts. Filters’ position is that since it was the first in court, Lear is “vexatious” whereas Filters is to be commended for its “attempt to finally settle this controversy at one time.” 2 It goes so far as to claim that Lear should be grateful for the injunction, since it “cannot be hurt * * * and may well benefit,” and even the Exchequer Court should be gratified because its “ease load * * * has been, at last temporarily, and perhaps permanently, reduced.”
Rather than congratulate Filters for its private and public benefactions, unsought and unappreciated аt least so far as Lear is concerned, and, at best, of no value to the Exchequer Court, which is capable of staying its own рroceedings if it wishes to, we observe that fundamental principles have been lost sight of. The issue is not one of jurisdiction, but one, аlmost as important when a foreign sovereign is involved, of comity. The presence of the parties confers on the district court jurisdiction to act, Cole v. Cunningham, 1890,
Doubtless there are times when comity, a blend of courtesy and expedience,
3
must give way, for example when
Although Filters, a Canadian corporation, sells its products in the United States, in order to continue its Canadian manufacture it must succeed under both patents. Boesch v. Graff, 1890,
The injunction is vacated and the action is remanded to thе District Court for further proceedings not inconsistent herewith.
Notes
. Filters makes the suggestion in its brief that apparently Lear is content with the court’s own treatment of the Canadian patent as it has not appealed from that part of the order. This suggestion is gratuitous, if not disingenuous, since, as Lear points out, that action is unappealable. 28 U.S.C. §§.1291, 1292.
. How it settles it “at one time” is not made clear, sinсe, coneededly, the district court plans to litigate the United States patent separately.
. As we said in Hayes Indus., Inc. v. Caribbean Sales Associates, Inc.,
supra,
