Granted Patent
Utility
US 4,472,341 · App. 06/510,791
Polyurethane process using polysiloxane mold release agents
Inventors:
Louis M. Alberino, Dale F. Regelman, George H. Temme
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Jul 5, 1983
Inventors
Louis M. Alberino
Dale F. Regelman
George H. Temme
Assignee (at issue)
The Upjohn Co.
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.