Granted Patent
Utility
US 5,649,636 · App. 08/598,367
Adjustable load lifting device
Inventor:
James A. Baumann
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: Feb 8, 1996
Inventor
James A. Baumann
Assignee (at issue)
MI-JACK PRODUCTS, INC.
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.