IP Library Granted Patent US 6,690,868
Granted Patent Utility
US 6,690,868 · App. 09/934,388

Optical waveguide article including a fluorine-containing zone

Inventors: Mark T. Anderson, Craig R. Schardt, James Onstott, Lawrence J. Donalds, Alessandra Chiareli
Patented Case View Patent ↗
Granted: Feb 10, 2004 Filed: Aug 21, 2001
Inventors
Mark T. Anderson
Craig R. Schardt
James Onstott
Lawrence J. Donalds
Alessandra Chiareli
Assignee (at issue)
3M INNOVATIVE PROPERTIES COMPANY

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 6,690,868
App. No.
09/934,388
Filed
2001-08-21
Granted
2004-02-10
Kind
B2