Granted Patent
Utility
US 6,417,778 · App. 09/767,846
Advanced floor mat
Inventors:
Ronald D. Blum, Dwight P. Duston
Patented Case
View Patent ↗
Granted: Jul 9, 2002
Filed: Jan 24, 2001
Inventors
Ronald D. Blum
Dwight P. Duston
Assignee (at issue)
Tech Mats, 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.