USD302545SExpiredUtility

Push button door chime

70
Assignee: BRIDISCO LTDPriority: Nov 10, 1987Filed: Mar 30, 1988Granted: Aug 1, 1989
Est. expiryNov 10, 2007(expired)· nominal 20-yr term from priority
Inventors:John H. Drane
70
PatentIndex Score
13
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design of a push button door chime, as shown.

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