Filter element
Ward , et al. September 28, 1
U.S. patent number D414,544 [Application Number D/086,057] was granted by the patent office on 1999-09-28 for filter element. This patent grant is currently assigned to Donaldson Company, Inc.. Invention is credited to Paul R. Coulonvaux, Johan G. Dewit, Jeffrey J. Ivarson, Kevin J. Schrage, Dennis E. Ward.
| United States Patent | D414,544 |
| Ward , et al. | September 28, 1999 |
Filter element
Claims
The ornamental design for filter element, as shown and described.
| Inventors: | Ward; Dennis E. (Richfield, MN), Schrage; Kevin J. (Spring Valley, MN), Coulonvaux; Paul R. (Brussells, BE), Dewit; Johan G. (Hamme-Mille, BE), Ivarson; Jeffrey J. (San Rafael, CA) |
|---|---|
| Assignee: | Donaldson Company, Inc.
(Minneapolis, MN) |
| Appl. No.: | D/086,057 |
| Filed: | April 3, 1998 |
Related U.S. Patent Documents
| Application Number | Filing Date | Patent Number | Issue Date | ||
|---|---|---|---|---|---|
| 076524 | Sep 12, 1997 | Des. 401306 | |||
| Current U.S. Class: | D23/209 |
| Current International Class: | 2301 |
| Field of Search: | ;D23/200,207,208,209 ;210/484,499,497.1,497.01,493.1,493.2 |
References Cited [Referenced By]
U.S. Patent Documents
| D326706 | June 1992 | Karlsson |
| D363760 | October 1995 | Morem et al. |
| D374476 | October 1996 | Page et al. |
| D401306 | November 1998 | Ward et al. |
| D402735 | December 1998 | Kott |
| 3469707 | September 1969 | Humbert, Jr. et al. |
| 4801383 | January 1989 | Hoffmann et al. |
| 5082476 | January 1992 | Kahlbaugh et al. |
| 5443721 | August 1995 | Kelada et al. |
| 5613992 | March 1997 | Engel |
Other References
|
Exhibit A, Photographs of a prior art filter element (2 pages; 4 photographs).. |
Primary Examiner: Taylor; Robin V.
Attorney, Agent or Firm: Merchant & Gould P.C.
Description
FIG. 1 is a top plan view of a filter element, according to the present invention;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof; and,
FIG. 6 is a bottom plan view thereof.
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