Easy-to-open envelope

Office supplies; artists and teachers materials – Paper or pasteboard for writing or printing – Envelope

Design Patent

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Design Patent

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D0512094

CLAIM:
The ornamental design for an easy-to-open envelope, as shown and described.

REFERENCES:
patent: 2157898 (1939-05-01), Hohwart
patent: 3652008 (1972-03-01), Grotefend
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patent: 6237844 (2001-05-01), Purcell
patent: D474807 (2003-05-01), Hirschey
patent: 6732494 (2004-05-01), Nolte
patent: 2002/0088847 (2002-07-01), Attia et al.
patent: 2003/0160090 (2003-08-01), MacEwen et al.

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