Granted Patent
Utility
US 4,940,848 · App. 07/269,862
Stable solutions of prepolymers of thiodi(phenylcyanate) and laminating method employing same
Inventor:
David A. Shimp
Patented Case
View Patent ↗
Granted: Jul 10, 1990
Filed: Nov 10, 1988
Inventor
David A. Shimp
Assignee (at issue)
Hi-Tek Polymers, 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.