Granted Patent
Utility
US 4,922,586 · App. 07/229,728
Slide-type fastener
Inventor:
Peter Robson
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: Aug 2, 1988
Inventor
Peter Robson
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.