Granted Patent
Utility
US 4,901,550 · App. 07/291,009
Manufacturing method of extra fine wire
Inventors:
Masato Koide, Takuro Iwamura, Tsugio Koya
Patented Case
View Patent ↗
Granted: Feb 20, 1990
Filed: Dec 28, 1988
Inventors
Masato Koide
Takuro Iwamura
Tsugio Koya
Assignee (at issue)
Mitsubishi Kinzoku Kabushiki Kaisha
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.