Granted Patent
Utility
US 6,273,640 · App. 09/158,204
Irrigation ditch liner
Inventor:
Kenneth L. Suazo
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Sep 22, 1998
Inventor
Kenneth L. Suazo
Assignee (at issue)
FAST DITCH, 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.