Granted Patent
Utility
US 4,782,890 · App. 07/039,856
Heat pipe
Inventors:
Saburo Shimodaira, Isamu Uchida, Minoru Hasegawa, Koichiro Fukui, Yuichi Furukawa, Kazunari Noguchi
Patented Case
View Patent ↗
Granted: Nov 8, 1988
Filed: Apr 20, 1987
Inventors
Saburo Shimodaira
Isamu Uchida
Minoru Hasegawa
Koichiro Fukui
Yuichi Furukawa
Kazunari Noguchi
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.