Granted Patent
Utility
US 6,725,521 · App. 09/856,092
Fastening of sheet material
Inventors:
Stuart Edmund Blacket, Nicholas Richard Clew
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Aug 22, 2001
Inventors
Stuart Edmund Blacket
Nicholas Richard Clew
Assignee (at issue)
Henrob Limited
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.