We find no merit in appellants’ objections relative to jurisdiction, venue, or stay of the trial date, pending Patent Office action. On each of those issues we affirm.

The summary judgment granted below is reversed, upon the ground the record discloses there exist genuine issues of material fact.

In view of this opinion, it is suggested that whatever district court judge tries the contested case, he should reconsider and re-examine the propriety and necessity of the continuation of preliminary injunctive relief.