Granted Patent
Utility
US 4,606,706 · App. 06/789,891
Internal compliant seal for compressor
Inventor:
Robert E. Utter
Patented Case
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Granted: Aug 19, 1986
Filed: Oct 21, 1985
Inventor
Robert E. Utter
Assignee (at issue)
American Standard 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.