Granted Patent
Utility
US 4,647,641 · App. 06/678,429
Curable organopolysiloxane compositions
Inventor:
Solomon C. Westbrook
Patented Case
View Patent ↗
Granted: Mar 3, 1987
Filed: Dec 5, 1984
Inventor
Solomon C. Westbrook
Assignee (at issue)
Pennwalt 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.