IP Library › Granted Patent US 511,291
Granted Patent S1
US 511,291 · App. 29/203,383 · Granted Nov 8, 2005

Doorknob

Assignee: Master Lock Company
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Quick Facts
Patent No.
US 511,291
App. No.
29/203,383
Granted
Nov 8, 2005
Kind
S1
Claims (1)

The ornamental design for a doorknob, as shown and described.

Assignments (2)
CHANGE OF NAME Recorded Oct 25, 2006
From: MASTER LOCK COMPANY
To: MASTER LOCK COMPANY LLC
Reel/Frame 018420/0873 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2004
From: HANDEL, MARK VAN
To: MASTER LOCK COMPANY
Reel/Frame 014769/0746 →