Granted Patent
Utility
US 6,570,899 · App. 09/648,630
Gas laser device
Inventors:
Takayuki Yabu, Takanobu Ishihara, Shunsuke Yoshioka
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Aug 28, 2000
Inventors
Takayuki Yabu
Takanobu Ishihara
Shunsuke Yoshioka
Assignee (at issue)
KOMATSU 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.