Granted Patent
Utility
US 6,045,147 · App. 08/957,840
Lift unit for weight distributing trailer hitch
Inventors:
Kenneth R. Schmidt, Eric B. Michalak
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Oct 27, 1997
Inventors
Kenneth R. Schmidt
Eric B. Michalak
Assignee (at issue)
Draw-Tite, 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.