IP Library Granted Patent US 4,752,561
Granted Patent Utility
US 4,752,561 · App. 06/861,311

Light-sensitive silver halide photographic material incorporating metal complex with high quenching constant and an oil soluble dye

Inventors: Toyoki Nishijima, Kaoru Onodera
Patented Case View Patent ↗
Granted: Jun 21, 1988 Filed: May 9, 1986
Inventors
Toyoki Nishijima
Kaoru Onodera
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 4,752,561
App. No.
06/861,311
Filed
1986-05-09
Granted
1988-06-21
Kind
A