Granted Patent
Utility
US 4,882,432 · App. 07/294,853
Polycyclic-carbamic acid piperazinoalkyl esters and amides
Inventors:
Magid A. Abou-Gharbia, John P. Yardley, Wayne E. Childers
Patented Case
View Patent ↗
Granted: Nov 21, 1989
Filed: Jan 9, 1989
Inventors
Magid A. Abou-Gharbia
John P. Yardley
Wayne E. Childers
Assignee (at issue)
Amerimas Home Products, Inc.
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.