Granted Patent
Utility
US 4,815,544 · App. 07/017,749
Cultivator disc adjuster
Inventor:
Garry R. Good
Patented Case
View Patent ↗
Granted: Mar 28, 1989
Filed: Feb 24, 1987
Inventor
Garry R. Good
Assignee (at issue)
Allied Products 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.