Granted Patent
Utility
US 5,281,060 · App. 07/991,330
Annular hole cutter
Inventors:
Robert E. Strange, William C. McKay, Michael Fangmann, Timothy M. Flaherty
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Dec 16, 1992
Inventors
Robert E. Strange
William C. McKay
Michael Fangmann
Timothy M. Flaherty
Assignee (at issue)
Jancy Engineering Company
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.