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:
Nov. 21, 1989
Filed:
Sep. 01, 1987
Applicant:
Inventors:
Assignee:
Asahi Glass Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 341 ; 428 344 ; 428 346 ; 428 363 ; 428428 ; 65 13 ; 65 64 ; 65108 ;
Abstract
A method for producing a glass capillary tube, which comprises drawing under heating a multiple tube assembly comprising a plurality of glass tubes having different diameters arranged coaxially one in another and simultaneously integrating the assembly by heat fusion.