Granted Patent
Utility
US 6,543,521 · App. 09/678,794
Cooling element and cooling apparatus using the same
Inventors:
Kaoru Sato, Yasuhiro Fujiwara, Shinobu Kamizuru, Sumio Tate, Kazuhiko Sugimoto
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Oct 4, 2000
Inventors
Kaoru Sato
Yasuhiro Fujiwara
Shinobu Kamizuru
Sumio Tate
Kazuhiko Sugimoto
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.