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.

Date of Patent:
Jun. 03, 1980

Filed:

Dec. 05, 1978
Applicant:
Inventors:

Peter Ward, Ashton-in-Makerfield, GB;

Geoffrey M Ballard, St. Helens, GB;

Assignee:

Pilkington Brothers Limited, St. Helens, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65114 ; 65104 ; 65348 ; 65351 ;
Abstract

A glass sheet is thermally toughened by heating the sheet to a temperature near to its softening point and then lowering the sheet into a gas-fluidized bed of particulate material. A void region is established beneath the lower edge of the sheet as it is initially immersed in the fluidized bed.


Find Patent Forward Citations

Ward, Peter. (1980). Thermal toughening of glass (U.S. Patent No. 4205976). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4205976

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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