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:
May. 02, 1989
Filed:
Apr. 09, 1987
Applicant:
Inventors:
Robert J Mansfield, Stow, MA (US);
Bill C McCollum, Marlborough, MA (US);
Richard P Tumminelli, Ashland, MA (US);
Assignee:
Polaroid Corporation, Patent Department, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; C03B / ;
U.S. Cl.
CPC ...
350320 ; 65-312 ; 350 9629 ; 350 9634 ;
Abstract
A chemical vapor deposition method which utilizes a rare earth chelate vapor as a source of rare earth ions for producing an optical fiber having a core with a high rare earth content.