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:
Apr. 11, 1989
Filed:
Sep. 25, 1987
Applicant:
Inventors:
Carlo DeBernardi, Turin, IT;
Eros Modone, Turin, IT;
Assignee:
Centro Studi e Laboratori Telecomunicazioni Spa, Turin, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
65-312 ; 65 301 ; 1566591 ; 501 37 ; 501 40 ; 501904 ;
Abstract
The method consists of diffusing a doping compound in the region of a fluorozirconate glass support, wherein the optical guide is to be fabricated. The remaining regions are suitably masked to avoid any possible ionic exchange.
DeBernardi, Carlo. (1989). Method of fabricating optical waveguides for the midinfrared portion of (U.S. Patent No. 4820323). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4820323
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile