Granted Patent
Utility
US 4,304,056 · App. 06/163,646
Snow plow mounting assembly
Inventors:
Gary E. Watson, Edward A. Simi
Patented Case
View Patent ↗
Granted: Dec 8, 1981
Filed: Jun 27, 1980
Inventors
Gary E. Watson
Edward A. Simi
Assignee (at issue)
Douglas Dynamics, L.L.C.
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.