Granted Patent
Utility
US 4,992,466 · App. 07/482,367
Polycyclic ether antibiotic
Inventors:
Alexander C. Goudie, Nigel Derek Arthur Walshe
Patented Case
View Patent ↗
Granted: Feb 12, 1991
Filed: Feb 20, 1990
Inventors
Alexander C. Goudie
Nigel Derek Arthur Walshe
Assignee (at issue)
Pfizer 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.