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The ornamental design for filter element, as shown and described.
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FIG. 1 is a perspective view of a filter element embodying our new design;
FIG. 2 is a front side elevational view thereof;
FIG. 3 is a rear side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a perspective view thereof.
Stenersen, Eivind, Matthys, Bernard A., Gustafson, Michael J., Gulsvig, Brent A.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 28 2002 | Donaldson Company, Inc. | (assignment on the face of the patent) | / | |||
| May 09 2002 | GUSTAFSON, MICHAEL J | Donaldson Company, Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012914 | /0030 | |
| May 09 2002 | MATTHYS, BERNARD A | Donaldson Company, Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012914 | /0030 | |
| May 09 2002 | STENERSEN, EIVIND | Donaldson Company, Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012914 | /0030 | |
| Oct 09 2002 | GULSVIG, BRENT A | Donaldson Company, Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 013443 | /0414 |
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