IP Library › Granted Patent US 3,947,099
Granted Patent Utility
US 3,947,099 · App. 05/538,229

Solid state color anomaloscope

Inventors: Bernard Grolman, Robert G. Lavallee
Patented Case View Patent ↗
Granted: Mar 30, 1976 Filed: Jan 2, 1975
Inventors
Bernard Grolman
Robert G. Lavallee
Assignee (at issue)
American Optical Corporation

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 3,947,099
App. No.
05/538,229
Filed
1975-01-02
Granted
1976-03-30
Kind
A