IP Library Granted Patent US 4,812,358
Granted Patent Utility
US 4,812,358 · App. 07/088,066

Magnetic recording medium

Inventors: Toru Miyake, Yasushi Nakano
Patented Case View Patent ↗
Granted: Mar 14, 1989 Filed: Aug 21, 1987
Inventors
Toru Miyake
Yasushi Nakano
Assignee (at issue)
Konishiroku Photo Industry 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.

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 4,812,358
App. No.
07/088,066
Filed
1987-08-21
Granted
1989-03-14
Kind
A