Granted Patent
Utility
US 5,965,749 · App. 09/039,769
Process for synthesizing substituted 2-benzo [b]thiophenecarboxylic acids and salts thereof
Inventor:
Walter G. Brouwer
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Mar 16, 1998
Inventor
Walter G. Brouwer
Assignees (at issue)
Uniroyal Chemical Company, Inc.
Uniroyal Chemical Cie.
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.