Granted Patent
Utility
US 4,635,903 · App. 06/760,268
Electric hoist pendant control switch arrangement
Inventors:
Robert H. Broyden, R. Paul Benton, Allen E. Eldridge
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: Jul 29, 1985
Inventors
Robert H. Broyden
R. Paul Benton
Allen E. Eldridge
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.