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:
Mar. 16, 1999
Filed:
Sep. 08, 1997
Applicant:
Inventors:
John Porter, St. Catharines, CA;
Rosalene Brunka, St. Catharines, CA;
Assignee:
Bay Mills Ltd., Ontario, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04B / ;
U.S. Cl.
CPC ...
52417 ; 52479 ; 428343 ; 428354 ;
Abstract
A hand-tearable barrier laminate includes a reinforcing layer having a first tensile strength. The reinforcing layer is laminated to a flexible cellulosic web. The web has open porosity and a second tensile strength which is less than the first tensile strength. The web is treated with a water-resistant polymeric resin for providing liquid water resistance to the web while permitting water vapor to pass through the web. This hand-tearable barrier laminate can be substituted for polymer foam and microperforated plastic films currently employed by the housing industry, reducing costs.