Granted Patent
Utility
US 4,977,220 · App. 07/485,925
Epoxy end-capped diolefin derivatives, polymers thereof, and processes for forming same
Inventors:
Thomas K. Dougherty, Susan L. Oldham, William E. Elias
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Feb 20, 1990
Inventors
Thomas K. Dougherty
Susan L. Oldham
William E. Elias
Assignee (at issue)
Hughes Aircraft 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.