Granted Patent
Utility
US 4,546,114 · App. 06/664,820
Process for the preparation of polyurea elastomers
Inventors:
Louis M. Alberino, Dale F. Regelman, Nancy P. Vespoli
Patented Case
View Patent ↗
Granted: Oct 8, 1985
Filed: Oct 25, 1984
Inventors
Louis M. Alberino
Dale F. Regelman
Nancy P. Vespoli
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.