Granted Patent
Utility
US 4,594,402 · App. 06/755,971
Long chain hydrocarbon and fluorocarbon reactive internal release agents for condensation polymers
Inventors:
Charles R. Coleman, Thomas G. Rukavina
Patented Case
View Patent ↗
Granted: Jun 10, 1986
Filed: Jul 17, 1985
Inventors
Charles R. Coleman
Thomas G. Rukavina
Assignee (at issue)
PPG Industries, 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.