IP Library Granted Patent US 4,533,930
Granted Patent Utility
US 4,533,930 · App. 06/410,811

Recording materials

Inventors: Shunshuke Shioi, Yasuo Takekawa, Makoto Miyake
Patented Case View Patent ↗
Granted: Aug 6, 1985 Filed: Aug 23, 1982
Inventors
Shunshuke Shioi
Yasuo Takekawa
Makoto Miyake
Assignee (at issue)
Kanzaki Paper Manufacturing 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 4,533,930
App. No.
06/410,811
Filed
1982-08-23
Granted
1985-08-06
Kind
A