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The ornamental design for a pleat spacer for air filter, as shown and described.
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FIG. 1 is a perspective view of a pleat spacer for air filter;
FIG. 2 is a right side elevational view of FIG. 1, the left side elevational view being a mirror image thereof with an identical appearance;
FIG. 3 is a front side elevational view of FIG. 1, the back side elevational view being a mirror image thereof with an identical appearance;
FIG. 4 is a bottom plan view of FIG. 1; and,
FIG. 5 is a top plan view of FIG. 1.
Osendorf, Richard J., Smith, Timothy John
| Patent | Priority | Assignee | Title |
| 8097060, | Sep 18 2008 | Scott Technologies, Inc. | Laminate filter |
| Patent | Priority | Assignee | Title |
| 2135863, | |||
| 3138443, | |||
| 3606739, | |||
| 3789589, | |||
| 3869392, | |||
| 4133661, | Nov 25 1977 | General Motors Corporation | Air filter assembly |
| 4488966, | Jan 24 1980 | Memtec America Corporation | Filter pleat support means |
| 4547950, | May 29 1984 | Honeywell Inc. | Method of spacing the folds of a folded filter media |
| 4617122, | Aug 01 1984 | Donaldson Company, Inc.; DONALDSON COMPANY INC, A CORP OF MINNESOTA | Crimp seal pleated filter assembly |
| 4701196, | Sep 15 1986 | Research Products Corporation | Air filter assembly |
| 4963171, | Nov 02 1989 | Donaldson Company, Inc. | High efficiency filter and method of fabricating same |
| 5273563, | Dec 24 1992 | Research Products Corp. | Filter media retaining assembly for an air filter |
| 5273564, | Dec 24 1992 | Research Products Corporation | One piece filter media framework |
| 5290345, | Jan 13 1993 | Donaldson Company, Inc. | Refillable gas adsorption bed assembly and counterflow adsorber module |
| CA1073826, |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Nov 12 1997 | Donaldson Company, Inc. | (assignment on the face of the patent) | / |
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