IP Library › Granted Patent US 5,018,304
Granted Patent Utility
US 5,018,304 · App. 07/521,437

Door operator

Inventor: Ritchie L. Longoria
Patented Case View Patent ↗
Granted: May 28, 1991 Filed: May 10, 1990
Inventor
Ritchie L. Longoria
Assignee (at issue)
F. L. Saino Manufacturing Co.

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Quick Facts
Patent No.
US 5,018,304
App. No.
07/521,437
Filed
1990-05-10
Granted
1991-05-28
Kind
A