Granted Patent
Utility
US 6,539,672 · App. 09/952,675
Telescopic seating system tier catch and method
Inventor:
Colin Frost
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Sep 13, 2001
Inventor
Colin Frost
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.