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:
Feb. 15, 2011
Filed:
Oct. 10, 2006
Applicant:
Richard Knauer, Carmel, IN (US);
Inventor:
Richard Knauer, Carmel, IN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 11/00 (2006.01); H04R 25/00 (2006.01); H04R 25/02 (2006.01); A61B 7/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An earplug and a method of manufacturing the earplug are provided, the earplug including a sound attenuating element and a stem where the sound attenuating element includes a flange which extends rearwardly over a portion of the stem, and where the sound attenuating element and the stem are integrally formed of a resilient compressible material.