Patent
   D256548
Priority
Apr 03 1978
Filed
Apr 03 1978
Issued
Aug 26 1980
Expiry
Aug 26 1994
Assg.orig
Entity
unknown
20
7
n/a
The ornamental design for a letter opener, as shown.

FIG. 1 is a perspective view of a letter opener showing my new design;

FIG. 2 is an end elevational view thereof; and

FIG. 3 is a side elevational view of the letter opener.

The top of the letter opener is substantially planar.

Grunstad, Jerome A.

Patent Priority Assignee Title
D275166, Jul 22 1982 American Commercial Incorporated Knife
D292867, Jan 07 1985 Walter Henkels GmbH Letter-opener
D305976, Jan 06 1986 Walter Henkels GmbH Three-piece desk set
D326393, Aug 04 1989 Knife
D354427, Jun 03 1993 Rubbermaid Office Products Inc. Combined scissors and letter opener
D468593, May 28 2002 BLUE RHINO GLOBAL SOURCING, INC Knife
D554437, Apr 12 2006 KAI U S A , LTD , DBA KERSHAW KNIVES Knife
D554438, Apr 12 2006 KAI U S A , LTD , DBA KERSHAW KNIVES Knife
D559045, Apr 12 2006 KAI U S A , LTD , DBA KERSHAW KNIVES Knife
D614470, Oct 14 2009 Letter opener
D637048, Jun 29 2010 KAI U S A , LTD , DBA KERSHAW KNIVES Knife
D679150, Aug 09 2011 PUIFORCAT Knife
D679151, Aug 09 2011 PUIFORCAT Boning knife
D715613, Jul 09 2013 Wedge
D721565, Feb 21 2013 Target Brands, Inc. Letter opener
D779289, Nov 05 2015 EASYBLADE LLC Melon carving knife
D797273, Mar 15 2013 Illinois Tool Works Inc. Air filtration device filter pin
D842663, Mar 13 2017 FISKARS FINLAND OY AB Kitchen knife
D849476, Mar 13 2017 FISKARS FINLAND OY AB Kitchen knife
D852005, Oct 09 2017 RAIL HOLDINGS, LLC Knife
Patent Priority Assignee Title
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 03 1978Ketcham & McDougall, Inc.(assignment on the face of the patent)
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