USD452964SExpiredUtility
Acoustical horn
Est. expiryMar 7, 2021(expired)· nominal 20-yr term from priority
Inventors:Mary Vosse
73
PatentIndex Score
20
Cited by
7
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an acoustical horn, as shown and described.
Cited by (0)
No later patents cite this yet.
References (0)
No backward citations on record.