IP Library Granted Patent US 4,901,550
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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,901,550
App. No.
07/291,009
Filed
1988-12-28
Granted
1990-02-20
Kind
A