Granted Patent
Utility
US 4,602,687 · App. 06/691,846
Drive mechanism for turf aerating apparatus
Inventor:
Loren F. Hansen
Patented Case
View Patent ↗
Granted: Jul 29, 1986
Filed: Jan 16, 1985
Inventor
Loren F. Hansen
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.