Granted Patent
Utility
US 6,374,354 · App. 09/516,869
Consumable authentication protocol and system
Inventors:
Simon Robert Walmsley, Paul Lapstun
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Mar 2, 2000
Inventors
Simon Robert Walmsley
Paul Lapstun
Assignee (at issue)
Silverbrook Research Pty Ltd
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.