Backframe for self-contained breathing apparatus
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Description
The broken line showing forms no part of the claimed design, and the shading is provided to illustrate contour only and is not an indication of texture, gloss, etc.
Claims
The ornamental design for a backframe for self-contained breathing apparatus, as shown and described.
Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D1023294
Type: Grant
Filed: Feb 10, 2022
Date of Patent: Apr 16, 2024
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: William P. Atwood (Coon Rapids, MN), Graham Langford (Wirral), Michael S. Meyer (Waxhaw, NC), Barry S. Lewin (Liverpool), Martin Wilcockson (St. Helens)
Primary Examiner: Natasha Vujcic
Assistant Examiner: Gilbert B Ford
Application Number: 29/791,820
Type: Grant
Filed: Feb 10, 2022
Date of Patent: Apr 16, 2024
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: William P. Atwood (Coon Rapids, MN), Graham Langford (Wirral), Michael S. Meyer (Waxhaw, NC), Barry S. Lewin (Liverpool), Martin Wilcockson (St. Helens)
Primary Examiner: Natasha Vujcic
Assistant Examiner: Gilbert B Ford
Application Number: 29/791,820
Classifications