Granted Patent
Utility
US 5,116,931 · App. 07/589,842
Thermoset polyurethane elastomers and polyurea elastomers made using high functionality, low unsaturation level polyols prepared with double metal cyanide catalysts
Inventors:
John W. Reisch, Deborah M. Capone
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Sep 28, 1990
Inventors
John W. Reisch
Deborah M. Capone
Assignee (at issue)
Olin 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.