Granted Patent
Utility
US 4,517,331 · App. 06/586,369
Activating plasticizer for urethane prepolymers and complex of alkali metal salt with 4,4'-methylenedianiline
Inventors:
Dane K. Parker, Joseph A. Kuczkowski, Michael E. Kimball
Patented Case
View Patent ↗
Granted: May 14, 1985
Filed: Mar 5, 1984
Inventors
Dane K. Parker
Joseph A. Kuczkowski
Michael E. Kimball
Assignee (at issue)
THE GOODYEAR TIRE & RUBBER COMPANY
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.