Granted Patent
Utility
US 6,244,449 · App. 08/834,724
Free fall disconnect
Inventor:
David J. Pech
Patented Case
View Patent ↗
Granted: Jun 12, 2001
Filed: Apr 1, 1997
Inventor
David J. Pech
Assignee (at issue)
Manitowoc Crane Companies, LLC
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.