Granted Patent
Utility
US 5,371,979 · App. 08/154,956
Snow stop
Inventors:
Janusz Kwiatkowski, Michael J. Mullane
Patented Case
View Patent ↗
Granted: Dec 13, 1994
Filed: Nov 19, 1993
Inventors
Janusz Kwiatkowski
Michael J. Mullane
Assignee (at issue)
M. J. Mullane Co., 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.