Personal respiratory protection device

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Description

FIG. 1 is a perspective view of a personal respiratory protection device, showing our new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a top plan view thereof, the bottom plan being a mirror image; and,

FIG. 5 is a right side elevational view thereof, the left side being a mirror image.

The shading shown in the drawings is provided merely to highlight the contour of the design; it is not intended to be illustrative of texture.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design.

Claims

The ornamental design for personal respiratory protection device, as shown and described.

Referenced Cited
U.S. Patent Documents
1987922 January 1935 Blatt
2012505 August 1935 Goldsmith
2029947 February 1936 Schmitt et al.
2565124 August 1951 Durborow
2752916 July 1956 Haliczer
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3288138 November 1966 Sachs
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4248220 February 3, 1981 White
4300549 November 17, 1981 Parker
4417575 November 29, 1983 Hilton et al.
4628927 December 16, 1986 Ward
D287649 January 6, 1987 Zdrok et al.
4643182 February 17, 1987 Klein
4827924 May 9, 1989 Japuntich
4941470 July 17, 1990 Hubbard et al.
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D380545 July 1, 1997 Nozaki et al.
D424688 May 9, 2000 Bryant et al.
D431647 October 3, 2000 Henderson et al.
Foreign Patent Documents
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388638 March 1933 GB
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Other references
  • Racal Health & Safety Product Literature for “Delta™ Disposable Respirators” (1993).
  • Glendale Optical Company Product Literature for “Glendale Respiratory Protection” (Feb. 1983).
  • Bostock et al., U.S. Appl. No. 08/612,527, filed Mar. 8, 1996 entitled Flat-Folded Personal Respiratory Protection Devices And Processes For Preparing Same, which is a continuation-in-part of U.S. Appl. No. 08/507,449 filed Sep. 11, 1995 entitled Fold Flat Respirators And Processes For Preparing Same, now abandoned.
  • Henderson et al., U.S. Appl. No. 29/059,264, filed Sep. 6, 1996 entitled Personal Respiratory Protection Device Having An Exhalation Valve.
  • Bryant et al., U.S. Appl. No. 29/059,265, filed Sep. 6, 1996 entitled A Respiratory Protection Mask.
  • Henderson et al., U.S. Appl. No. 29/065,342, filed Jan. 24, 1997 entitled Bond Pattern.
  • Europa Safety Products (ESP) product literature entitled “The Next Generation In Safety” for their CN range of respirators (no date).
Patent History
Patent number: D620104
Type: Grant
Filed: Nov 25, 1996
Date of Patent: Jul 20, 2010
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Desmond T. Curran (Durham), John W. Bryant (High Shincliffe), Christopher P. Henderson (Durham)
Primary Examiner: Stella M Reid
Assistant Examiner: Derrick Holland
Attorney: Karl G. Hanson
Application Number: 29/062,787
Classifications
Current U.S. Class: Mask (D24/110.1)