Granted Patent
Utility
US 4,641,300 · App. 06/653,374
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Inventor:
Walter K. Wurst
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: Sep 21, 1984
Inventor
Walter K. Wurst
Assignee (at issue)
ITT 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.