Granted Patent
Utility
US 6,145,587 · App. 09/158,067
Evaporator
Inventor:
Tatsuya Hanafusa
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Sep 22, 1998
Inventor
Tatsuya Hanafusa
Assignee (at issue)
Showa Aluminum Corp.
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.