Granted Patent
Utility
US 4,583,906 · App. 06/625,542
Hydraulic backhoe latch mechanism
Inventor:
Claude M. Frisbee
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Jun 28, 1984
Inventor
Claude M. Frisbee
Assignee (at issue)
J. I. Case 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.