IP Library Granted Patent US 4,871,905
Granted Patent Utility
US 4,871,905 · App. 07/252,930

IC card reader/writer

Inventors: Katsuya Mita, Yutaka Machida, Muneki Morishita
Patented Case View Patent ↗
Granted: Oct 3, 1989 Filed: Oct 4, 1988
Inventors
Katsuya Mita
Yutaka Machida
Muneki Morishita
Assignee (at issue)
Omron Tateisi Electronics

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 4,871,905
App. No.
07/252,930
Filed
1988-10-04
Granted
1989-10-03
Kind
A