Granted Patent
Utility
US 4,354,891 · App. 05/910,920
Method of curing polyester resin in the presence of rubber
Inventors:
Charles Lostak, John L. Sznopek, Manfred Klepetar
Patented Case
View Patent ↗
Granted: Oct 19, 1982
Filed: May 30, 1978
Inventors
Charles Lostak
John L. Sznopek
Manfred Klepetar
Assignee (at issue)
Manville Service 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.