Granted Patent
Utility
US 5,544,702 · App. 08/425,438
Laminated heat exchanger with a single tank structure
Inventor:
Kunihiko Nishishita
Patented Case
View Patent ↗
Granted: Aug 13, 1996
Filed: Apr 20, 1995
Inventor
Kunihiko Nishishita
Assignee (at issue)
Zexel GmbH
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.