Granted Patent
Utility
US 4,377,582 · App. 06/266,257
2-Phenyl-4-[cis-2,5-dimethyl-4-(2-pyridinyl)-1-piperazinyl]quinazoline
Inventor:
Ying-Ho Chen
Patented Case
View Patent ↗
Granted: Mar 22, 1983
Filed: May 22, 1981
Inventor
Ying-Ho Chen
Assignee (at issue)
A. H. Robins Company, Incorporated
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.