IP Library › Granted Patent US 4,680,419
Granted Patent Utility
US 4,680,419 · App. 06/757,659

Spiroketals and process for preparing same

Inventor: Stephen J. Nelson
Patented Case View Patent ↗
Granted: Jul 14, 1987 Filed: Jul 22, 1985
Inventor
Stephen J. Nelson
Assignee (at issue)
The Upjohn Co.

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Quick Facts
Patent No.
US 4,680,419
App. No.
06/757,659
Filed
1985-07-22
Granted
1987-07-14
Kind
A