Granted Patent
Utility
US 4,773,486 · App. 06/898,053
Driven tine wheel type aerator having improved tine geometry
Inventors:
Donald J. Huber, Paul F. Santini
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: Aug 19, 1986
Inventors
Donald J. Huber
Paul F. Santini
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.