Granted Patent
Utility
US 6,189,221 · App. 09/224,345
Can opener appliance having a side-cutting mechanism
Inventors:
Mary Kathleen Barrow, Eric Wall
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Dec 31, 1998
Inventors
Mary Kathleen Barrow
Eric Wall
Assignee (at issue)
RIVAL
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.