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:
Oct. 12, 1976
Filed:
Aug. 29, 1974
Applicant:
Inventor:
Ludwig W Sepmeyer, Los Angeles, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ; A47B / ;
U.S. Cl.
CPC ...
181150 ; 181151 ; 181199 ;
Abstract
Background sound system provides audiofrequency energy in a large office space for masking speech. The system includes a plurality of downwardly directed speakers in speaker enclosures mounted on the top of the suspended ceiling defining the office space. The speakers are thus directly acoustically coupled with the office space.