Granted Patent
Utility
US 4,881,926 · App. 07/277,319
Stepless speed variator of a belt type
Inventors:
Hachiro Aoki, Tadashi Kobayashi, Junya Kuronuma, Hideya Kikuchi
Patented Case
View Patent ↗
Granted: Nov 21, 1989
Filed: Nov 29, 1988
Inventors
Hachiro Aoki
Tadashi Kobayashi
Junya Kuronuma
Hideya Kikuchi
Assignee (at issue)
Diesel Kiki 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.