Patent
   D276665
Priority
Mar 31 1981
Filed
Nov 16 1981
Issued
Dec 11 1984
Expiry
Dec 11 1998
Assg.orig
Entity
unknown
11
6
n/a
The ornamental design for an ear muff attachment for safety hat, as shown and described.

FIG. 1 is a rear perspective view of an ear muff attachment for safety hat showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a front elevational view thereof.

Higginson, John B.

Patent Priority Assignee Title
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D987599, Apr 06 2021 AMZALEG S LLC Ear phone cover
ER7567,
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Patent Priority Assignee Title
3454964,
3681540,
3845505,
4065645, Oct 26 1976 Audiotronics Corporation Headset
4347631, Jul 18 1980 SIEBE NORTH, INC Ear muff accessory for safety hard hat
D254100, Mar 01 1977 SANTRADE LTD , A CORP OF SWITZERLAND Protective helmet with ear muffs and face protection
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Oct 27 1981HIGGINSON, JOHN B PROTECTOR SAFETY INDUSTRIES LIMITED, A CORP OF NEW SOUTH WALES, AUSTRALIAASSIGNMENT OF ASSIGNORS INTEREST 0039580582 pdf
Nov 16 1981Protector Safety Industries Limited(assignment on the face of the patent)
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