Patent
   D318999
Priority
Feb 07 1989
Filed
Jul 11 1989
Issued
Aug 13 1991
Expiry
Aug 13 2005
Assg.orig
Entity
unknown
4
3
n/a
The ornamental design for an envelope opener, as shown and described.

FIG. 1 is a top, front, right side perspective view of an envelope opener showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof.

Tanigami, Shintaro

Patent Priority Assignee Title
D337276, May 03 1991 John Manufacturing Limited Combined digital clock and letter opener
D341535, Feb 17 1992 Hiraoka & Co., (H.K.) Ltd. Letter opener
D647776, Nov 07 2008 Pitney Bowes Inc.; PIITNEY BOWES INC Letter opener
D897429, Nov 08 2018 Eagle (Guangzhou) Technology Development Limited Electric punch
Patent Priority Assignee Title
2247840,
2266863,
D304131, May 25 1988 ELM INDUSTRY CO , LTD , A CORP OF JAPAN Envelope opener
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 05 1989TANIGAMI, SHINTAROELM INDUSTRY CO , LTD , A CORP OF JAPANASSIGNMENT OF ASSIGNORS INTEREST 0057150855 pdf
Jul 11 1989Elm Industry Co., Ltd.(assignment on the face of the patent)
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