Granted Patent
Utility
US 4,220,589 · App. 05/909,596
N-(Oxazolidinothio) imides that provide scorch retardant nonblooming elastomeric compositions
Inventors:
Ivan Christoff Popoff, Everett A. Mailey, Paul Gordon Haines
Patented Case
View Patent ↗
Granted: Sep 2, 1980
Filed: May 23, 1978
Inventors
Ivan Christoff Popoff
Everett A. Mailey
Paul Gordon Haines
Assignee (at issue)
Pennwalt 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.