USD439630SExpiredUtility

Cough silencer

41
Priority: Aug 4, 1999Filed: Aug 4, 1999Granted: Mar 27, 2001
Est. expiryAug 4, 2019(expired)· nominal 20-yr term from priority
Inventors:R. Craig EllingtonStephen D. EllingtonRhett P. Rush
41
PatentIndex Score
7
Cited by
9
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a cough silencer, as shown and described.

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