Earplug stem
Latest 3M Innovative Properties Company Patents:
- Composition including an acrylic polymer, a water-repellent polymer, and an ultraviolet light stabilizer and related articles and methods
- High efficiency infrared reflector having reduced color
- Optical systems including angle control films
- Fall-protection system with monitoring system
- Fall arresting device connector
Description
The broken line showing forms no part of the claimed design. The surface shading is provided only to indicate contour. It is not indicative of texture, gloss, etc.
Claims
I claim, the ornamental design for an earplug stem, as shown and described.
Referenced Cited
U.S. Patent Documents
| D269252 | June 7, 1983 | Balistreri |
| D274754 | July 17, 1984 | Chernack |
| D327647 | July 7, 1992 | Lemme |
| D354656 | January 24, 1995 | Strawbridge |
| D369655 | May 7, 1996 | Esler et al. |
| D375551 | November 12, 1996 | Esler et al. |
| D413379 | August 31, 1999 | Leight |
| D466995 | December 10, 2002 | Knauer et al. |
| D478658 | August 19, 2003 | Falco |
| D521637 | May 23, 2006 | Yang |
| D577812 | September 30, 2008 | Zwart |
| D595268 | June 30, 2009 | Kolton |
Patent History
Patent number: D621030
Type: Grant
Filed: May 27, 2009
Date of Patent: Aug 3, 2010
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventor: Robert Nicolo Falco (Indianapolis, IN)
Primary Examiner: Elizabeth A Albert
Assistant Examiner: Kelley A Donnelly
Attorney: Karl G. Hanson
Application Number: 29/337,618
Type: Grant
Filed: May 27, 2009
Date of Patent: Aug 3, 2010
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventor: Robert Nicolo Falco (Indianapolis, IN)
Primary Examiner: Elizabeth A Albert
Assistant Examiner: Kelley A Donnelly
Attorney: Karl G. Hanson
Application Number: 29/337,618
Classifications
Current U.S. Class:
Ear Plug Or Nose Clip (D24/106)