USD414632SExpiredUtility

Double torsion coil spring

34
Assignee: GEORGE GIBBENS PTY LTDPriority: Sep 29, 1997Filed: Mar 27, 1998Granted: Oct 5, 1999
Est. expirySep 29, 2017(expired)· nominal 20-yr term from priority
Inventors:Gregory Richard Gibbens
34
PatentIndex Score
3
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a double torsion coil spring, as shown and described.

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