Granted Patent
Utility
US 6,718,720 · App. 10/262,771
Flooring system and method
Inventor:
Gregory E. Doppler
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Oct 2, 2002
Inventor
Gregory E. Doppler
Assignee (at issue)
CORNERSTONE SPECIALTY WOOD PRODUCTS, LLC
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.