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:
Apr. 17, 2018
Filed:
Sep. 07, 2011
Applicants:
John S. Edwards, Weston, WI (US);
Frank W. Klink, Oak Park Heights, MN (US);
Inventors:
John S. Edwards, Weston, WI (US);
Frank W. Klink, Oak Park Heights, MN (US);
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04D 13/17 (2006.01); E04D 1/24 (2006.01); E04D 1/28 (2006.01);
U.S. Cl.
CPC ...
E04D 13/178 (2013.01); E04D 1/24 (2013.01); E04D 1/28 (2013.01); E04D 13/17 (2013.01);
Abstract
A roofing article having a body, a first channel defined within an upper portion of said body having an inlet through which outside air can enter the first channel, and a second channel defined in a lower portion of said body. A sheet separates the second channel from the first channel. The second channel is operably connected to the first channel through an orifice in the sheet such that the outside air can enter the second channel through the orifice.