Granted Patent
Utility
US 4,652,573 · App. 06/711,815
Calcium antagonist N-hetero ester 1,4-dihydropyridines
Inventors:
Gevork Minaskanian, Vithal J. Rajadhyaksha
Patented Case
View Patent ↗
Granted: Mar 24, 1987
Filed: Mar 14, 1985
Inventors
Gevork Minaskanian
Vithal J. Rajadhyaksha
Assignee (at issue)
Nelson Research & Development Company
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.