US3407274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for remotely testing telephone subsets
Assignee: Automatic Electric Laboratories Inc
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Filing: 1965-12-30
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Granted: 1968-10-22
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Expires: 1985-12-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Hribik
- 👤 Joseph P Jallits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:23
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN A TELEPHONE SYSTEM, A PLURALITY OF TELEPHONE SUBSETS, SAID SUBSETS INCLUDING DIFFERENT TYPES OF CALLING DEVICES EACH OPERABLE TO GENERATE DIGIT SIGNALS, APPARATUS FOR TESTING THE OPERATION OF SAID CALLING DEVICES, MEANS FOR SEIZING SAID APPARATUS BY DIALING FROM A CALLING ONE OF SAID SUBSETS AN ACCESS CODE COMPRISING A PLURALITY OF SAID DIGITS, AT LEAST A NUMBER OF SAID LAST-MENTIONED DIGITS
Claim 2
Dependent Claim
63 words
IN A TELEPHONE SYSTEM, A PLURALITY OF TELEPHONE SUBSETS, SAID SUBSETS INCLUDING DIFFERENT TYPES OF CALLING DEVICES EACH OPERABLE TO GENERATE DIGIT SIGNALS, APPARATUS FOR TESTING THE OPERATION OF SAID CALLING DEVICES, MEANS FOR SEIZING SAID APPARATUS BY DIALING FROM A CALLING ONE OF SAID SUBSETS AN ACCESS CODE COMPRISING A PLURALITY OF SAID DIGITS, AT LEAST A NUMBER OF SAID LAST-MENTIONED DIGITS
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |