Granted Patent
Utility
US 5,264,449 · App. 07/434,929
N-substituted derivatives of 3R,4R-ethyl-[(1-methyl-1H-imidazol-5-yl)methyl]-2-pyrrolidinone
Inventor:
Pamela Albaugh
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Nov 13, 1989
Inventor
Pamela Albaugh
Assignee (at issue)
Allergan, 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.