Granted Patent
Utility
US 6,042,292 · App. 08/624,923
Pre-engineered failure link for brush shaft
Inventors:
Michael J. Belanger, Robert J. Wentworth
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Mar 29, 1996
Inventors
Michael J. Belanger
Robert J. Wentworth
Assignee (at issue)
BELANGER, 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.