Granted Patent
Utility
US 4,185,938 · App. 05/961,993
Locking collar for power take-off mounted shafts
Inventor:
Ramon Pareja
Patented Case
View Patent ↗
Granted: Jan 29, 1980
Filed: Nov 20, 1978
Inventor
Ramon Pareja
Assignee (at issue)
Lear Siegler, 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.