Granted Patent
Utility
US 5,934,159 · App. 09/020,774
Opener for package closure
Inventor:
Arthur W. Robichaud
Patented Case
View Patent ↗
Granted: Aug 10, 1999
Filed: Feb 9, 1998
Inventor
Arthur W. Robichaud
Assignee (at issue)
SIG Combibloc, 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.