Granted Patent
Utility
US 3,967,651 · App. 05/438,141
Adhesives coatings and laminates utilizing ethylene copolymers and coal-tar pitch
Inventors:
George F. Snyder, Robert Stewart
Patented Case
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Granted: Jul 6, 1976
Filed: Jan 30, 1974
Inventors
George F. Snyder
Robert Stewart
Assignee (at issue)
United States Steel 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.