Granted Patent
Utility
US 6,131,668 · App. 08/998,794
Sod laying apparatus and method
Inventor:
Ronald L. Houska
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Dec 29, 1997
Inventor
Ronald L. Houska
Assignee (at issue)
CLARK EQUIPMENT COMPANY
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.