IP Library Granted Patent US 4,359,521
Granted Patent Utility
US 4,359,521 · App. 06/105,174

Light-sensitive color photographic material

Inventors: Mario Fryberg, Remon Hagen, John G. V. Scott
Patented Case View Patent ↗
Granted: Nov 16, 1982 Filed: Dec 19, 1979
Inventors
Mario Fryberg
Remon Hagen
John G. V. Scott
Assignee (at issue)
Ciba-Geigy

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 4,359,521
App. No.
06/105,174
Filed
1979-12-19
Granted
1982-11-16
Kind
A