Granted Patent
Utility
US 6,597,719 · App. 09/642,024
Once through fan for gas laser apparatus and gas laser apparatus therewith
Inventors:
Hisashi Nara, Natsushi Suzuki
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Aug 21, 2000
Inventors
Hisashi Nara
Natsushi Suzuki
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.