Granted Patent
Utility
US 5,142,800 · App. 07/813,653
Snow groomer tow frame alignment device
Inventors:
Scott J. Hales, Terry L. Zollinger
Patented Case
View Patent ↗
Granted: Sep 1, 1992
Filed: Dec 27, 1991
Inventors
Scott J. Hales
Terry L. Zollinger
Assignee (at issue)
Logan Manufacturing Company
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.