Granted Patent
Utility
US 5,495,670 · App. 08/434,478
Utility knife
Inventor:
Charles Quinn
Patented Case
View Patent ↗
Granted: Mar 5, 1996
Filed: May 4, 1995
Inventor
Charles Quinn
Assignee (at issue)
Fiskars 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.