Granted Patent
Utility
US 4,987,210 · App. 07/465,292
Polymerizable derivatives of 5-oxo-pyrrolidinecarboxylic acid
Inventors:
Robert B. Login, John J. Merianos, Gary Dandreaux, Jenn S. Shih
Patented Case
View Patent ↗
Granted: Jan 22, 1991
Filed: Jan 16, 1990
Inventors
Robert B. Login
John J. Merianos
Gary Dandreaux
Jenn S. Shih
Assignee (at issue)
GAF Chemicals Corporation
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.