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:
Dec. 07, 1999
Filed:
Mar. 05, 1998
Applicant:
Inventors:
Robert J Oliveira, Maplewood, MN (US);
Davis W Chamberlin, Saint Paul, MN (US);
Assignee:
Hearing Components, Inc., Oakdale, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
128864 ; 128865 ;
Abstract
A composite reusable sound attenuating or transmitting device, especially an ear plug, is formed from a core, about which is adhered a strip of slow recovery foam. After each use of the device, the strip of foam is generally removed and discarded; typically, a new strip is applied the next time the device is used.