Granted Patent
Utility
US 5,857,367 · App. 08/761,383
Brazing method
Inventor:
Shoji Akiyama
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Dec 9, 1996
Inventor
Shoji Akiyama
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.