IP Library Granted Patent US 5,453,969
Granted Patent Utility
US 5,453,969 · App. 08/238,756

Optical memory with pit depth encoding

Inventors: Demetri Psaltis, David Marx, Gabriel Y. Sirat
Patented Case View Patent ↗
Granted: Sep 26, 1995 Filed: May 4, 1994
Inventors
Demetri Psaltis
David Marx
Gabriel Y. Sirat
Assignee (at issue)
California Institute of Technology

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 5,453,969
App. No.
08/238,756
Filed
1994-05-04
Granted
1995-09-26
Kind
A