Granted Patent
Utility
US 6,722,818 · App. 10/453,673
Ditch liner system
Inventors:
Kenneth L. Suazo, Isaac Suazo
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Jun 3, 2003
Inventors
Kenneth L. Suazo
Isaac 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.