Granted Patent
Utility
US 4,301,359 · App. 06/122,465
Heat roller type fixing apparatus for electrophotographic copying machine
Inventors:
Takashi Ito, Nin-ichi Kamogawa
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Feb 19, 1980
Inventors
Takashi Ito
Nin-ichi Kamogawa
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.