W. A. Pipkin, W. O. Kinnebrew, Arthur S. Gibbons and the Exchange National Bank of Tampa, a National Banking Corporation, V

ORIE L. PHILLIPS, Circuit Judge.

Pipkin, Kinnebrew, Gibbons, and The Exchange National Bank of Tampa 1 brought this action against FMC Corporation, 2 a Delaware corporation, to recover royalties alleged to have accrued and become due to them under a License Agreement theretofore entered into by Pipkin and FMC.

From a summary judgment in favor of FMC, the plaintiffs have appealed.

From extensive discovery proceedings had and depositions taken, the following facts appeared without substantial dispute.

The License Agreement was entered into on May 15, 1946, between Pipkin, as Licensor, and FMC, as…