Granted Patent
Utility
US 4,776,607 · App. 07/006,255
Trailer coupler with tamper resistant lock mechanism
Inventors:
Karl E. Richter, Edward Ebey, Steven L. Permut, Stephen T. Bemis
Patented Case
View Patent ↗
Granted: Oct 11, 1988
Filed: Jan 12, 1987
Inventors
Karl E. Richter
Edward Ebey
Steven L. Permut
Stephen T. Bemis
Assignee (at issue)
Fulton Manufacturing Corporation
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.