Granted Patent
Utility
US 6,811,246 · App. 10/018,854
Ink-jet image forming device
Inventors:
Kunitoshi Hayashi, Iwao Kawamura
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Apr 2, 2002
Inventors
Kunitoshi Hayashi
Iwao Kawamura
Assignee (at issue)
CANON FINETECH 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.