Granted Patent
Utility
US 4,904,753 · App. 07/172,012
Acid/oxidizer catalyst system for storage stable, quick-cure phenolic resins of the resole or benzylic ether resole type
Inventors:
Golden F. Watts, Warren L. Robbins
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Mar 23, 1988
Inventors
Golden F. Watts
Warren L. Robbins
Assignee (at issue)
Ashland Oil, Inc.
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.