Granted Patent
Utility
US 6,290,581 · App. 09/476,830
Automatic mower reel grinder
Inventors:
James H. Dieck, Roger Rosenquist
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Jan 3, 2000
Inventors
James H. Dieck
Roger Rosenquist
Assignee (at issue)
Foley-Belsaw
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.