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. 15, 1982

Filed:

May. 11, 1981
Applicant:
Inventors:

Renato A Lizardo, Minnetonka, MN (US);

Roger D O'Shaughnessy, Chaska, MN (US);

Assignee:

Cardinal Insulated Glass Co., Minneapolis, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06B / ;
U.S. Cl.
CPC ...
428 34 ; 52172 ; 52789 ; 156 85 ; 156 99 ; 156107 ; 156109 ; 428 45 ; 428192 ;
Abstract

An insulating unit suitable for installation in walls, doors, and the like, is manufactured by a method that includes the steps of supporting a heat-shrinkable plastic film between spaced but parallel glass panes to provide an integral unit, and then heating the unit to cause the plastic film to shrink and become taut and wrinkle-free.


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