Granted Patent
Utility
US 5,409,069 · App. 08/092,218
Tillage implement with gauge wheel linked to wing lifting and self-leveling mechanism
Inventor:
Kenneth A. Hake
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Jul 16, 1993
Inventor
Kenneth A. Hake
Assignee (at issue)
Kent Manufacturing Co., Inc.
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.