Granted Patent
Utility
US 4,241,066 · App. 05/886,833
14-Amino derivatives of morphine, methods of making them and analgesic compositions containing them
Inventors:
Ryszard Kobylecki, Ian G. Guest, John Lewis, Gordon W. Kirby
Patented Case
View Patent ↗
Granted: Dec 23, 1980
Filed: Mar 15, 1978
Inventors
Ryszard Kobylecki
Ian G. Guest
John Lewis
Gordon W. Kirby
Assignee (at issue)
Reckitt & Colman Products Limited
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.