Granted Patent
Utility
US 4,777,497 · App. 06/921,816
Ink jet printing head having a flexible film covered ink supply chamber
Inventors:
Taketo Nozu, Yoshiaki Kimura, Kiyotaka Murakami
Patented Case
View Patent ↗
Granted: Oct 11, 1988
Filed: Oct 21, 1986
Inventors
Taketo Nozu
Yoshiaki Kimura
Kiyotaka Murakami
Assignee (at issue)
Konishiroku Photo Industry Co., 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.