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. 18, 1980
Filed:
Apr. 11, 1978
Applicant:
Inventors:
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04B / ; E04B / ; C04B / ;
U.S. Cl.
CPC ...
181287 ; 181290 ; 181294 ; 428 58 ; 428 33 ; 428 70 ; 428921 ; 428246 ;
Abstract
Sound insulating units and sound barriers made therefrom include at least one flexible sheet having a surface density of at least 2.0 Kg/cm.sup.2. Such sheets are capable of being connected to form an efficient sound barrier.