Granted Patent
Utility
US 6,685,171 · App. 09/757,796
Lifting device
Inventors:
Charles J. Lob, John S. Millman
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: Jan 10, 2001
Inventors
Charles J. Lob
John S. Millman
Assignee (at issue)
Harken, Incorporated
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.