Granted Patent
Utility
US 4,318,340 · App. 06/104,380
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Inventors:
James L. Shenoha, Robert A. Burch
Patented Case
View Patent ↗
Granted: Mar 9, 1982
Filed: Dec 17, 1979
Inventors
James L. Shenoha
Robert A. Burch
Assignee (at issue)
Norwood Marking & Equipment Co., 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.