Granted Patent
Utility
US 6,058,962 · App. 09/202,400
Flow rate regulating valve of hydraulic pump
Inventors:
Masumi Hayashi, Tetsuji Hayashi, Ryoichi NAGASAKA
Patented Case
View Patent ↗
Granted: May 9, 2000
Filed: Dec 14, 1998
Inventors
Masumi Hayashi
Tetsuji Hayashi
Ryoichi NAGASAKA
Assignee (at issue)
Kayaba Kogyo Kabushiki Kaisha
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.