Granted Patent
Utility
US 6,027,136 · App. 08/780,722
System for preventing toe-edge travel of a hi-back
Inventor:
Frank Phillips
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: Jan 8, 1997
Inventor
Frank Phillips
Assignee (at issue)
BURTON 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.