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:
Oct. 18, 2022

Filed:

Feb. 18, 2020
Applicant:

Certainteed Gypsum and Ceiling Manufacturing Inc., Malvern, PA (US);

Inventor:

Douglas J. Wambaugh, Bend, OR (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 48/00 (2019.01); E04F 13/06 (2006.01); B29C 48/16 (2019.01); B29C 48/285 (2019.01); B29C 48/12 (2019.01); B29B 7/34 (2006.01); B29K 55/02 (2006.01); B29K 67/00 (2006.01); B29K 223/00 (2006.01); B29L 31/10 (2006.01);
U.S. Cl.
CPC ...
E04F 13/068 (2013.01); B29C 48/00 (2019.02); B29C 48/022 (2019.02); B29C 48/16 (2019.02); B29C 48/2886 (2019.02); B29B 7/34 (2013.01); B29C 48/0022 (2019.02); B29C 48/12 (2019.02); B29K 2055/02 (2013.01); B29K 2067/003 (2013.01); B29K 2223/065 (2013.01); B29L 2031/10 (2013.01); E04F 2013/063 (2013.01);
Abstract

A corner trim material that is made of a material that will bond with current industry mastics such as all purpose joint compounds, resists impact, resists abrasion, and readily accepts common coatings such as drywall mud, texture and paints. The surface of this material generally does not need to be covered by any secondary fiber based material such as paper to improve bonding or coating on the inside or outside. The material generally consists of a polymer mixed with a fibrous material like pulp or glass fiber. A corner trim piece can be directly extruded from the mix. The corner trim piece can have a center hinge, can be bullnose, and the flanges can optionally have holes or optionally be coated with adhesive.


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