Granted Patent
Utility
US 4,307,563 · App. 06/146,258
Filament trimmer mower
Inventors:
William Fuelling, Jr., Carl E. Seyerle
Patented Case
View Patent ↗
Granted: Dec 29, 1981
Filed: May 5, 1980
Inventors
William Fuelling, Jr.
Carl E. Seyerle
Assignee (at issue)
Outboard Marine Corporation
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.