Granted Patent
Utility
US 4,299,768 · App. 06/047,585
1-Pyrrole- and 1-pyrrolidine-carboxylic acid derivatives and process for preparing the same
Inventors:
Charles Pigerol, Michel Schaefer, Souli Nanthavong
Patented Case
View Patent ↗
Granted: Nov 10, 1981
Filed: Jun 11, 1979
Inventors
Charles Pigerol
Michel Schaefer
Souli Nanthavong
Assignee (at issue)
Labaz
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.