Granted Patent
Utility
US 4,408,969 · App. 06/265,578
Vane compressor having improved rotor supporting means
Inventor:
Haruhiko Takada
Patented Case
View Patent ↗
Granted: Oct 11, 1983
Filed: May 20, 1981
Inventor
Haruhiko Takada
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.