Granted Patent
Utility
US 5,151,973 · App. 07/701,042
Printing apparatus and information processing apparatus using the same
Inventors:
Akira Sasaki, Takeshi Kato, Akiyoshi Hakoyama
Patented Case
View Patent ↗
Granted: Sep 29, 1992
Filed: May 16, 1991
Inventors
Akira Sasaki
Takeshi Kato
Akiyoshi Hakoyama
Assignee (at issue)
HITACHI, 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.