Granted Patent
Utility
US 5,019,636 · App. 07/350,068
Polyester chain-extended vinyl ether urethane oligomers
Inventors:
Stephen C. Lapin, James R. Snyder
Patented Case
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Granted: May 28, 1991
Filed: May 10, 1989
Inventors
Stephen C. Lapin
James R. Snyder
Assignee (at issue)
AlliedSignal, 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.