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The ornamental design for a chemical detergent block, as shown and described. |
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FIG. 1 is a perspective view of a chemical block showing our new design;
FIG. 2 is a side elevational view;
FIG. 3 is an opposite side elevational view thereof;
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a bottom plan view thereof.
Gladfelter, Elizabeth J., Outlaw, Tina O., Boche, Daniel K., Copeland, James L., Schulz, Rhonda K., Peterson, Jeff W.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 09 1991 | GLADFELTER, ELIZABETH J | ECOLAB INC , A CORPORATION OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 005706 | /0835 | |
| May 09 1991 | OUTLAW, TINA O | ECOLAB INC , A CORPORATION OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 005706 | /0835 | |
| May 09 1991 | COPELAND, JAMES L | ECOLAB INC , A CORPORATION OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 005706 | /0835 | |
| May 09 1991 | SCHULZ, RHONDA K | ECOLAB INC , A CORPORATION OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 005706 | /0835 | |
| May 09 1991 | BOCHE, DANIEL K | ECOLAB INC , A CORPORATION OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 005706 | /0835 | |
| May 09 1991 | PETERSON, JEFF W | ECOLAB INC , A CORPORATION OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 005706 | /0835 | |
| May 14 1991 | Ecolab Inc. | (assignment on the face of the patent) | / | |||
| Jan 01 2009 | ECOLAB, INC | Ecolab USA Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 056794 | /0126 |
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