Granted Patent
Utility
US 4,515,394 · App. 06/428,384
Wheel lock and stand assembly for trailer
Inventor:
David J. Zwick
Patented Case
View Patent ↗
Granted: May 7, 1985
Filed: Sep 29, 1982
Inventor
David J. Zwick
Assignee (at issue)
The Coleman Company, 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.