Granted Patent
Utility
US 4,555,089 · App. 06/588,390
Wheel lift device
Inventor:
Leonard F. Eck
Patented Case
View Patent ↗
Granted: Nov 26, 1985
Filed: Mar 12, 1984
Inventor
Leonard F. Eck
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.