IP Library › Granted Patent US 4,181,409
Granted Patent Utility
US 4,181,409 · App. 05/952,188

Aspheric lens series

Inventors: Donald B. Whitney, James A. Reilly, John M. Young
Patented Case View Patent ↗
Granted: Jan 1, 1980 Filed: Oct 16, 1978
Inventors
Donald B. Whitney
James A. Reilly
John M. Young
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 4,181,409
App. No.
05/952,188
Filed
1978-10-16
Granted
1980-01-01
Kind
A