IP Library › Granted Patent US 4,681,954
Granted Patent Utility
US 4,681,954 · App. 06/784,978

7,8,9,10-tetrahydro-6-oxo-6H-dibenzo(b,d)pyranyloxy-propanes

Inventor: Ronald C. Griffith
Patented Case View Patent ↗
Granted: Jul 21, 1987 Filed: Oct 7, 1985
Inventor
Ronald C. Griffith
Assignee (at issue)
Pennwalt Corporation

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Quick Facts
Patent No.
US 4,681,954
App. No.
06/784,978
Filed
1985-10-07
Granted
1987-07-21
Kind
A