USD1057296SActiveUtility

Air supply attachment for a helmet

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Assignee: 3M INNOVATIVE PROPERTIES COMPANYPriority: Apr 1, 2022Filed: Apr 1, 2022Granted: Jan 7, 2025
Est. expiryApr 1, 2042(~15.7 yrs left)· nominal 20-yr term from priority
Inventors:Benjamin A. JohnsonPaul A. MartinsonGarry J. WalkerDavid J. SchmidtDavid L. Ausen
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PatentIndex Score
0
Cited by
32
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for an air supply attachment for a helmet as shown and described.

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