Granted Patent
Utility
US 4,751,983 · App. 07/018,557
Load lifting device load sensing
Inventors:
Edward V. Leskovec, Richard A. Schwehr
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Feb 25, 1987
Inventors
Edward V. Leskovec
Richard A. Schwehr
Assignee (at issue)
Caterpillar Industrial 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.