Granted Patent
Utility
US 6,599,111 · App. 09/984,260
Vane pump having an intake groove through a side wall member
Inventors:
Mizuo Ohtaki, Kazuyoshi Ishizaki, Yukio Uchida, Miyoko Hamao
Patented Case
View Patent ↗
Granted: Jul 29, 2003
Filed: Oct 29, 2001
Inventors
Mizuo Ohtaki
Kazuyoshi Ishizaki
Yukio Uchida
Miyoko Hamao
Assignee (at issue)
Unisia Jecs Corporation
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.