Granted Patent
Utility
US 4,880,406 · App. 07/199,449
Meter handle mechanism
Inventors:
John W. Van Horn, Clyde T. Johnson
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: May 31, 1988
Inventors
John W. Van Horn
Clyde T. Johnson
Assignee (at issue)
Duncan Industries Parking Control Systems
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.