USD921229SActiveUtility

Acoustic building elements

89
Assignee: ROCKWOOL INTPriority: Aug 9, 2019Filed: Jan 30, 2020Granted: Jun 1, 2021
Est. expiryAug 9, 2039(~13.1 yrs left)· nominal 20-yr term from priority
Inventors:Nicolai Sørensen
89
PatentIndex Score
19
Cited by
9
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for an acoustic building element, as shown and described.

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