Granted Patent
Utility
US 6,155,772 · App. 09/176,441
Lift-liner apparatus with improved weight-carrying capacity
Inventor:
Aldon E. Beale
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Oct 21, 1998
Inventor
Aldon E. Beale
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.