Granted Patent
Utility
US 4,977,646 · App. 07/472,274
Cam assisted load binder
Inventor:
Clarence L. McCraw
Patented Case
View Patent ↗
Granted: Dec 18, 1990
Filed: Jan 30, 1990
Inventor
Clarence L. McCraw
Assignee (at issue)
Columbus McKinnon 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.