Granted Patent
Utility
US 5,096,993 · App. 07/608,517
Thermoplastic polyurethane elastomers and polyurea elastomers made using low unsaturation level polyols prepared with double metal cyanide catalysts
Inventors:
Curtis P. Smith, Maurice C. Raes, John W. Reisch, Kiran B. Chandalia, James M. O'Connor
Patented Case
View Patent ↗
Granted: Mar 17, 1992
Filed: Nov 2, 1990
Inventors
Curtis P. Smith
Maurice C. Raes
John W. Reisch
Kiran B. Chandalia
James M. O'Connor
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.