Granted Patent
Utility
US 5,832,949 · App. 08/594,832
Control valve
Inventors:
Tetsuji Hayashi, Toshihiro Yamada
Patented Case
View Patent ↗
Granted: Nov 10, 1998
Filed: Jan 31, 1996
Inventors
Tetsuji Hayashi
Toshihiro Yamada
Assignee (at issue)
KAYABA 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.