Granted Patent
Utility
US 6,739,404 · App. 09/829,736
Wheel supported implement for working and grading soil
Inventor:
Kevin V. Keigley
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: Apr 10, 2001
Inventor
Kevin V. Keigley
Assignee (at issue)
Absolute Innovations, 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.