Granted Patent
Utility
US 4,576,363 · App. 06/734,159
Lever-operated hoist or puller
Inventor:
James J. Pancook
Patented Case
View Patent ↗
Granted: Mar 18, 1986
Filed: May 15, 1985
Inventor
James J. Pancook
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.