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:
Jun. 28, 1977
Filed:
Nov. 10, 1975
Applicant:
Inventor:
Gerardus Henricus van der Steen, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65 32 ; 65134 ; 65136 ;
Abstract
A method for producing quartz glass objects starting from a melt of silicon dioxide in helium and hydrogen atmosphere. The drawn objects are first heated in the temperature range of 800.degree.-1400.degree. C and thereafter at a temperature of at least 1600.degree. C. The result is a considerable reduction in the number of bubbles.
van der Steen, Gerardus. (1977). Method for the production of quartz-glass objects by drawing (U.S. Patent No. 4032315). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4032315
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile