USD259043SExpiredUtility

Security telephone

87
Assignee: INT TELEPHONE AND TELEGRAPH CORPORATIONPriority: Jun 14, 1978Filed: Jun 14, 1978Granted: Apr 28, 1981
Est. expiryJun 14, 1998(expired)· nominal 20-yr term from priority
Inventors:Martin FeinbergJohn De FilippisTing-Wah Wong
87
PatentIndex Score
23
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a security telephone, substantially as shown and described.

Join the waitlist — get patent alerts

Track USD259043S — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.