Granted Patent
Utility
US 4,487,038 · App. 06/487,505
Laminate type evaporator
Inventor:
Takeo Iijima
Patented Case
View Patent ↗
Granted: Dec 11, 1984
Filed: Apr 22, 1983
Inventor
Takeo Iijima
Assignee (at issue)
Diesel Kiki Co., 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.