Granted Patent
Utility
US 6,604,493 · App. 10/266,815
Liquid material vaporizing and feeding apparatus
Inventor:
Ikuo Toki
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Oct 8, 2002
Inventor
Ikuo Toki
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.