Granted Patent
Utility
US 4,267,358 · App. 06/129,877
Phenolic ester inhibitor
Inventors:
Ingenuin Hechenbleikner, William P. Enlow, James H. Weis
Patented Case
View Patent ↗
Granted: May 12, 1981
Filed: Mar 13, 1980
Inventors
Ingenuin Hechenbleikner
William P. Enlow
James H. Weis
Assignee (at issue)
BorgWarner Inc.
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.