Granted Patent
Utility
US 6,363,685 · App. 09/575,335
Method and apparatus for selectively adjusting the elevation of an undulating or plannar surface
Inventor:
William E. Kugler
Patented Case
View Patent ↗
Granted: Apr 2, 2002
Filed: May 19, 2000
Inventor
William E. Kugler
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.