PTO
Wrapper
PDF
|
Dossier
Espace
Google
|
|
Patent
D591416
|
Priority
May 30 2008
|
Filed
May 30 2008
|
Issued
Apr 28 2009
|
Expiry
Apr 28 2023
|
|
Assg.orig
|
|
Entity
unknown
|
2
|
10
|
n/a
|
|
|
The ornamental design for a sparkplug-shaped ear plug, as shown and described.
|
FIG. 1 is a front perspective view of an ear plug, showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a rear elevational view thereof; and,
FIG. 5 is a left side elevational view thereof, whereas the right side elevational view is a mirror image.
The broken lines shown in the FIGS. 1 and 4 drawings of the hole are for illustrative purposes only and form no part of the claimed design.
Randle, Robert J., Prowizor, Randal D.
Patent |
Priority |
Assignee |
Title |
3259128, |
|
|
|
4314553, |
Aug 08 1979 |
Dalloz Safety AB |
Earplug and earplug set |
4774938, |
Apr 09 1987 |
SPERIAN HEARING PROTECTION, LLC DELAWARE LIMITED LIABILITY COMPANY |
Slow recovery earplug with largely impenetrable surface |
5809574, |
Aug 15 1996 |
3M Innovative Properties Company |
Hearing protection device |
5904143, |
Oct 21 1996 |
MOLDEX-METRIC, INC , A CALIFORNIA CORPORATION |
Foam earplug with non-permeable elastomeric coating |
6129175, |
May 07 1999 |
Radians, Inc.; RADIANS, INC , A CORP OF TENNESSEE |
Acoustical control plastisol earpieces |
7107993, |
Nov 12 2004 |
Moldex-Metric, Inc. |
Earplug |
7264081, |
Jun 10 2005 |
UVEX ARBEITSSCHUTZ GMBH |
Hearing protection earplug |
7464786, |
Jun 11 2004 |
3M Innovative Properties Company |
High sound attenuating hearing protection device |
D242743, |
Aug 28 1975 |
|
Ear plug |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a