USD315527SExpiredUtility

Call button indicator for an elevator

78
Assignee: OTIS ELEVATOR COPriority: May 12, 1989Filed: May 12, 1989Granted: Mar 19, 1991
Est. expiryMay 12, 2009(expired)· nominal 20-yr term from priority
Inventors:John M. KulikowskiWilliam A. Weirsman
78
PatentIndex Score
19
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a call button indicator for an elevator, as shown and described.

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