Granted Patent
Utility
US 6,006,701 · App. 09/222,287
Vaporizer in a liquid material vaporizing and feeding apparatus
Inventor:
Katsuhisa Nagano
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: Dec 28, 1998
Inventor
Katsuhisa Nagano
Assignee (at issue)
Aera Japan 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.