Granted Patent
Utility
US 4,339,601 · App. 06/192,471
Terephthalic acid derivatives and process for preparing them
Inventor:
Albert M. V. Jacques
Patented Case
View Patent ↗
Granted: Jul 13, 1982
Filed: Sep 30, 1980
Inventor
Albert M. V. Jacques
Assignee (at issue)
Union Carbide 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.