Filter cover for powered air purifying respirator
Dwyer , et al. April 30, 2
U.S. patent number D681,190 [Application Number D/413,401] was granted by the patent office on 2013-04-30 for filter cover for powered air purifying respirator. This patent grant is currently assigned to 3M Innovative Properties Company. The grantee listed for this patent is Nathan A. Abel, Gary E. Dwyer, John M. Pilgrim, James E. Steffen. Invention is credited to Nathan A. Abel, Gary E. Dwyer, John M. Pilgrim, James E. Steffen.
| United States Patent | D681,190 |
| Dwyer , et al. | April 30, 2013 |
Filter cover for powered air purifying respirator
Claims
CLAIM The ornamental design for a filter cover for powered air purifying respirator, as shown and described.
| Inventors: | Dwyer; Gary E. (Mallorytown, CA), Abel; Nathan A. (Minneapolis, MN), Steffen; James E. (Woodbury, MN), Pilgrim; John M. (Woodbury, MN) | ||||||||||
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| Applicant: |
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| Assignee: | 3M Innovative Properties
Company (St. Paul, MN) |
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| Appl. No.: | D/413,401 | ||||||||||
| Filed: | February 15, 2012 |
| Current U.S. Class: | D24/110 |
| Current International Class: | 2902 |
| Field of Search: | ;D24/110,164 ;D23/364,365 ;D14/188,257,258 ;128/200.24,204.18,204.21,205.12,205.27 |
References Cited [Referenced By]
U.S. Patent Documents
| 4899740 | February 1990 | Napolitano |
| D464725 | October 2002 | Petherbridge et al. |
| D479524 | September 2003 | Nara |
| D585131 | January 2009 | Trevor-Wilson et al. |
| D632375 | February 2011 | Curran et al. |
| D646379 | October 2011 | Huh |
| D654070 | February 2012 | Silva et al. |
| 2009/0314295 | December 2009 | Hatmaker |
| 2011/0126713 | June 2011 | Legare |
| 2011/0146682 | June 2011 | Patil et al. |
Other References
|
Miller PAPR webpage obtained from internet on Feb. 20, 2012 http://www.millerwelds.com/products/welding.sub.--protection/filtration/p- apr/. cited by applicant. |
Primary Examiner: Simmons; Ian
Assistant Examiner: Shelton; Richelle
Attorney, Agent or Firm: Levinson; Eric D.
Description
FIG. 1 is a front perspective view showing the new design for a filter cover for powered air purifying respirator;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is an enlarged left side view thereof; and,
FIG. 7 is an enlarged right side view thereof.
The broken lines enclosing portions of the article are included for the purpose of illustrating structure that is not part of the claimed design.
The shading is provided to illustrate contour only and is not an indication of surface texture.
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References
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