USD312820SExpiredUtility

Telephone network interface apparatus

52
Assignee: KEPTEL INCPriority: Mar 4, 1988Filed: Mar 4, 1988Granted: Dec 11, 1990
Est. expiryMar 4, 2008(expired)· nominal 20-yr term from priority
Inventors:Thomas J. CollinsAnthony L. Nieves
52
PatentIndex Score
6
Cited by
6
References
1
Claims

Claims

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

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