Granted Patent
Utility
US 4,544,765 · App. 06/676,689
Chloramphenicol derivatives
Inventors:
Pyare Khanna, Evan S. Snyder, Prithipal Singh
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: Nov 30, 1984
Inventors
Pyare Khanna
Evan S. Snyder
Prithipal Singh
Assignee (at issue)
Syra 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.