Granted Patent
Utility
US 4,127,607 · App. 05/800,345
Process for the preparation of an acetamide derivative
Inventors:
Michel Chignac, Claude Grain, Charles Pigerol
Patented Case
View Patent ↗
Granted: Nov 28, 1978
Filed: May 25, 1977
Inventors
Michel Chignac
Claude Grain
Charles Pigerol
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.