Granted Patent
Utility
US 4,886,242 · App. 07/250,772
Pneumatic hydraulic side lifting jack
Inventors:
Leonard F. Eck, Reinald D. Liegel, Charles E. Naber, Garry J. Sabel
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Sep 28, 1988
Inventors
Leonard F. Eck
Reinald D. Liegel
Charles E. Naber
Garry J. Sabel
Assignee (at issue)
Hein-Werner Corporation
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.