Granted Patent
Utility
US 4,430,952 · App. 06/415,150
Planter gauge wheels with adjustable equalizer mechanism
Inventor:
David L. Murray
Patented Case
View Patent ↗
Granted: Feb 14, 1984
Filed: Sep 7, 1982
Inventor
David L. Murray
Assignee (at issue)
Allis-Chalmers 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.