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Patent
   D276380
Priority
Feb 17 1981
Filed
Jul 16 1981
Issued
Nov 20 1984
Expiry
Nov 20 1998
Inventors
Hellberg, …
Assg.orig
Hellberg P…
Assg.curr
HELLBERG P…
Entity
unknown
Referenced by
8
References
3
Maint.:
n/a
The ornamental design for a visor frame for a protective helmet, as shown and described.

FIG. 1 is a side elevational view of a visor frame for a protective helmet showing my new design;

FIG. 2 is a perspective view thereof; and

FIG. 3 is an enlarged top plan view thereof.
INVENTORS:

Hellberg, Goran

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D298476, Dec 19 1984 Visor frame for a protective helmet
D360708, Jun 05 1992 Peltor, Aktiebolag Helmet visor
D662672, Sep 29 2010 3M Innovative Properties Company Face shield holder
D672097, Sep 03 2010 GALVION LTD Cover
D747560, May 30 2014 3M Innovative Properties Company Helmet bracket
D779790, Feb 04 2015 Cap shade extender
D936908, Jun 09 2020 Lincoln Global, Inc. Chin guard for a face shield
ER7287,
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
4023210, May 21 1975 Universal flip-up attachment for helmets
168057,
D250496, Aug 08 1976 RACAL ACOUSTIC SERVICES LIMITED Head seal for an anti-dust helmet
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 16 1981Hellberg Protection Aktiebolag(assignment on the face of the patent)
Sep 19 1983HELLBERG, ARNEHELLBERG PROTECTION AKTIEBOLAG P O BOX 90, 443 01 LERUM, SWEDEN A COMPANY OF SWEDENASSIGNMENT OF ASSIGNORS INTEREST 0041740424 pdf
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