Granted Patent
Utility
US 5,222,688 · App. 07/706,641
Keyed spool bearing
Inventors:
Robert L. Forslund, Melvin Matheson
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: May 29, 1991
Inventors
Robert L. Forslund
Melvin Matheson
Assignee (at issue)
ZEBCO HOLDINGS, LLC
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.