Granted Patent
Utility
US 4,897,941 · App. 07/396,925
Snow grooming comb
Inventor:
William B. Sinykin
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Aug 21, 1988
Inventor
William B. Sinykin
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.