Granted Patent
Utility
US 5,295,562 · App. 07/930,766
Centrifugal brake
Inventors:
Roger V. Hajny, Robert J. Pirkey
Patented Case
View Patent ↗
Granted: Mar 22, 1994
Filed: Aug 14, 1992
Inventors
Roger V. Hajny
Robert J. Pirkey
Assignee (at issue)
Johnson Service 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.