Granted Patent
Utility
US 5,011,932 · App. 06/934,575
Anthelmintic pyridinyl acylhydrazones derivatives
Inventors:
Douglas L. Rector, George A. Conder, Sylvester D. Folz
Patented Case
View Patent ↗
Granted: Apr 30, 1991
Filed: Oct 3, 1986
Inventors
Douglas L. Rector
George A. Conder
Sylvester D. Folz
Assignee (at issue)
The Upjohn Co.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.