Granted Patent
Utility
US 4,849,316 · App. 07/284,851
Heat fixing electrophotographic toner containing olefin wax
Inventors:
Shoji Kawaski, Hisatomo Sato, Masaaki Shin, Takashi Yamamoto
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Dec 13, 1988
Inventors
Shoji Kawaski
Hisatomo Sato
Masaaki Shin
Takashi Yamamoto
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.