Granted Patent
Utility
US 4,197,352 · App. 05/863,554
Composite friction assemblies and methods of making such assemblies
Inventors:
John E. Emmett, James Gregson
Patented Case
View Patent ↗
Granted: Apr 8, 1980
Filed: Dec 22, 1977
Inventors
John E. Emmett
James Gregson
Assignee (at issue)
Hooker Chemicals & Plastics 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.