USD493377SExpiredUtility

Retractable chalk line

Priority: Oct 24, 2003Filed: Oct 24, 2003Granted: Jul 27, 2004
Est. expiryOct 24, 2023(expired)· nominal 20-yr term from priority
Inventors:Michael Brugger
55
PatentIndex Score
9
Cited by
16
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a retractable chalk line, as shown and described.

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