PTO Wrapper PDF
Dossier Espace Google
Patent
   D249508
Priority
Mar 15 1976
Filed
Mar 15 1976
Issued
Sep 19 1978
Expiry
Sep 19 1992
Inventors
Coughlin, …
Assg.orig
Assg.curr
Entity
unknown
Referenced by
15
References
4
Maint.:
n/a
The ornamental design for the audio speaker housing for protective helmets, as shown.

FIG. 1 is a top plan view of an audio speaker housing for protective helmets showing my new design;

FIG. 2 is a side elevation thereof;

FIG. 3 is a cross-section taken on line 3--3 of FIG. 1; and

FIG. 4 is a bottom plan view thereof.
INVENTORS:

Coughlin, Ronald D., Pohlmann, Jr., Kenneth E.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
5819183, Jun 20 1994 Microtalk Technologies; MULTITALK TECHNOLOGIES, INC ; MICROTALK TECHNOLOGIES, INC Low-feedback compact wireless telephone
6091965, Jun 20 1994 MicroTalk Technologies, Inc. Low-feedback compact wireless telephone
6311071, Jun 20 1994 MicroTalk Technologies, Inc. Low-feedback compact wireless telephone
8340311, Jun 25 2007 Voice amplification system for signal calling during the play of a sports competition
D380476, Jun 20 1994 MicroTalk Technologies, Inc.; MULTITALK TECHNOLOGIES, INC 10001 WAYZATA BOULEVARD; MICROTALK TECHNOLOGIES, INC Retractable earpiece for a compact wireless telephone
D381653, Jun 20 1994 MicroTalk Tchnologies, Inc.; MULTITALK TECHNOLOGIES, INC ; MICROTALK TECHNOLOGIES, INC Compact wireless telephone
D386745, Jun 20 1994 MicroTalk Technologies, Inc.; MULTITALK TECHNOLOGIES, INC Quick release outboard battery clasp for a compact wireless telephone
D519985, Jan 04 2005 Motorola Mobility LLC Earphone pod and similar articles
D589945, Apr 17 2008 Powercam, Inc. Cell phone headset
D618218, Apr 30 2009 Harman International Industries, Incorporated Ear bud adapter
D716771, Sep 09 2013 Harman International Industries, Incorporated Earbud
D717274, Sep 09 2013 Harman International Industries, Incorporated Cinch for earbud and earphone cords
D717275, Sep 09 2013 Harman International Industries, Incorporated Controller for earbuds and earphones
D769219, Jan 20 2015 Yamaha Corporation Speaker for headphone
D849704, Jun 28 2016 Samsung Electronics Co., Ltd. Wearable electronic device
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2619639,
3889190,
3890475,
3916312,
ASSIGNMENT RECORDS    Assignment records on the USPTO
Executed onAssignorAssigneeConveyanceFrameReelDoc
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule