Granted Patent
Utility
US 4,481,322 · App. 06/480,498
Novel reinforcing additive and method of reinforcing thermoplastic polymer therewith
Inventors:
Robert E. Godlewski, Frederick D. Osterholtz
Patented Case
View Patent ↗
Granted: Nov 6, 1984
Filed: Mar 30, 1983
Inventors
Robert E. Godlewski
Frederick D. Osterholtz
Assignee (at issue)
Union Carbide 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.