Granted Patent
Utility
US 6,660,108 · App. 09/815,383
Method for manufacturing a fin material for brazing
Inventors:
Takeyoshi Doko, Akira Kawahara
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Mar 22, 2001
Inventors
Takeyoshi Doko
Akira Kawahara
Assignee (at issue)
FURUKAWA ELECTRIC 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.