IP Library › Granted Patent US 4,433,245
Granted Patent Utility
US 4,433,245 · App. 06/342,613

Fraunhofer line discriminator

Inventor: Sherman K. Poultney
Patented Case View Patent ↗
Granted: Feb 21, 1984 Filed: Jan 25, 1982
Inventor
Sherman K. Poultney
Assignee (at issue)
PerkinElmer, Inc.

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 4,433,245
App. No.
06/342,613
Filed
1982-01-25
Granted
1984-02-21
Kind
A