USD516693SExpiredUtility
Axial fan with double impellers rotating in mutually opposite directions
Est. expiryMar 10, 2023(expired)· nominal 20-yr term from priority
51
PatentIndex Score
8
Cited by
7
References
1
Claims
Claims
exact text as granted — not AI-modifiedCLAIM
The ornamental design for an axial fan with double impellers rotating in mutually opposite directions, as shown and described.Cited by (0)
No later patents cite this yet.
References (0)
No backward citations on record.