Granted Patent
Utility
US 5,385,255 · App. 08/156,294
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Inventors:
Richard F. Varano, Donald Kramer
Patented Case
View Patent ↗
Granted: Jan 31, 1995
Filed: Nov 23, 1993
Inventors
Richard F. Varano
Donald Kramer
Assignee (at issue)
Sherwood Tool Incorporated
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.