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The ornamental design for an envelope power conveyor stacker, as shown. |
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FIG. 1 is a perspective view of an envelope power conveyor stacker showing our new design;
FIG. 2 is a plan view thereof;
FIG. 3 is an end elevational view thereof taken along the line 3--3 of FIG. 2;
FIG. 4 is an end elevational view thereof taken along the line 4--4 of FIG. 2.
FIG. 5 is a front view taken along line 5--5 of FIG. 3;
FIG. 6 is a rear view taken along line 6--6 of FIG. 3.
FIG. 7 is a bottom plan view taken along the line 7--7 of FIG. 3.
Krupotich, Edward A., Bingham, George H., Rosensweig, Burton J.
| Patent | Priority | Assignee | Title |
| D299774, | Sep 05 1986 | Opex Corporation | Envelope conveyor/stacker |
| D478121, | Jan 07 2002 | Opex Corporation | Envelope opener |
| D974461, | Mar 19 2019 | Opex Corporation | Envelope opener |
| Patent | Priority | Assignee | Title |
| 1879040, | |||
| 3481598, | |||
| 3945635, | Jul 19 1974 | Pitney-Bowes, Inc. | Power stacker |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jun 23 1982 | BINGHAM, GEORGE H | Omation Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 004023 | /0408 | |
| Jun 23 1982 | KRUPOTICH, EDWARD A | Omation Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 004023 | /0408 | |
| Jun 24 1982 | ROSENSWEIG, BURTON J | Omation Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 004023 | /0408 | |
| Jul 12 1982 | Omation Corporation | (assignment on the face of the patent) | / | |||
| Apr 30 1994 | Omation Corporation | Opex Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006975 | /0641 |
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