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The ornamental design for a letter opener, as shown and described. |
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FIG. 1 is a front elevational view of the letter opener, showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof; and,
FIG. 7 is a perspective view thereof.
| Patent | Priority | Assignee | Title |
| Patent | Priority | Assignee | Title |
| 2247840, | |||
| 2266863, | |||
| D263276, | Jun 08 1979 | Letter opener | |
| D303616, | Jun 23 1986 | The Cloverline Incorporated | Letter opener |
| D304131, | May 25 1988 | ELM INDUSTRY CO , LTD , A CORP OF JAPAN | Envelope opener |
| D318999, | Feb 07 1989 | Elm Industry Co., Ltd. | Envelope opener |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 27 1992 | TAKASHIMA, AKIRA | HIRAOKA & CO , H K LTD A HONG KONG CORPORATION | ASSIGNMENT OF ASSIGNORS INTEREST | 006160 | /0458 | |
| Jun 05 1992 | Hiraoka & Co., (H.K.) Ltd. | (assignment on the face of the patent) | / |
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