The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 1980
Filed:
Dec. 29, 1977
Applicant:
Inventors:
Charles K Kao, Roanoke, VA (US);
Mokhtar S Maklad, Roanoke, VA (US);
Assignee:
International Telephone and Telegraph Corporation, Nutley, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9630 ; 350 67 ; 350 9633 ; 350 9634 ;
Abstract
Optical communication fibers having improved fatigue resistance are provided by encapsulating the fibers in a water impervious material. The water impervious material prevents the interaction of water with glass along the fiber outer surface and prolongs the operational life-time of the fibers.