Granted Patent
Utility
US 6,460,306 · App. 09/436,317
Interconnecting disengageable flooring system
Inventor:
Thomas J. Nelson
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Nov 8, 1999
Inventor
Thomas J. Nelson
Assignee (at issue)
Premark RWP Holdings, 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.