Granted Patent
Utility
US 6,459,876 · App. 09/908,245
Toner cartridge
Inventors:
John Andrew Buchanan, Chris Anthony Burdette, Philip Scot Carter, John William Kietzman, Benjamin Keith Newman, Matthew Lee Rogers
Patented Case
View Patent ↗
Granted: Oct 1, 2002
Filed: Jul 18, 2001
Inventors
John Andrew Buchanan
Chris Anthony Burdette
Philip Scot Carter
John William Kietzman
Benjamin Keith Newman
Matthew Lee Rogers
Assignee (at issue)
Lexmark International, 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.