USD389392SExpiredUtility

Doorknob

51
Assignee: WAN CHENPriority: Jul 29, 1996Filed: Jul 29, 1996Granted: Jan 20, 1998
Est. expiryJul 29, 2016(expired)· nominal 20-yr term from priority
Inventors:Chen Wan
51
PatentIndex Score
8
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a doorknob, as shown.

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