Granted Patent
Utility
US 4,096,915 · App. 05/786,479
Ground working apparatus with tools to draw the apparatus forward
Inventor:
Hugh F. Groth
Patented Case
View Patent ↗
Granted: Jun 27, 1978
Filed: Apr 11, 1977
Inventor
Hugh F. Groth
Assignee (at issue)
True Temper 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.