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:
Jun. 25, 2013
Filed:
Apr. 10, 2009
Applicants:
Mari Nonogi, Sagamihara, JP;
Makoto Sasaki, Mishima, JP;
Chiaki Hanamaki, Sagamihara, JP;
Inventors:
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B 1/84 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multilayer sound absorbing sheet including a film layer having through-micro bores and apertures, and a fibrous material layer disposed on the film layer is provided. A method of absorbing sound including providing the multilayer sound absorbing sheet of the present disclosure and positioning the multilayer sound absorbing sheet between an acoustic source and a sound-reflecting surface is also provided.
Nonogi, Mari. (2013). Multilayer sound absorbing sheet (U.S. Patent No. 8469145). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8469145
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile