IP Library › Granted Patent US 4,504,139
Granted Patent Utility
US 4,504,139 · App. 06/432,838

Copying apparatus

Inventors: Hiromi Nozaki, Eiichi Yoshida
Patented Case View Patent ↗
Granted: Mar 12, 1985 Filed: Oct 5, 1982
Inventors
Hiromi Nozaki
Eiichi Yoshida
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 4,504,139
App. No.
06/432,838
Filed
1982-10-05
Granted
1985-03-12
Kind
A