Patent US2330828A successfully refreshed from Google Patents.
Patent US3250863A successfully refreshed from Google Patents.
US3250863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test access circuit
Assignee: Stromberg Carlson Corp
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Filing: 1962-06-04
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Granted: 1966-05-10
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Expires: 1982-06-04
Abstract
No abstract record available.
Inventors
- 👤 James G Pearce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:20
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/22; H04M3/26; H04M3/28; H04M3/30; H04M3/302; H04M3/303
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN A COMMUNICATION SYSTEM, A PLURALITY OF LINES EACH ADAPTED TO ORIGINATE AND TERMINATE COMMUNICATION CONNECTIONS, A SIGNALING CIRCUIT COMMON TO A PREDETERMINED GROUP OF SAID LINES, INDIVIDUAL SWITCHING MEANS ASSOCIATED WITH EACH OF SAID LINES COMPRISING SAID PREDETERMINED GROUP FOR SELECTIVELY CONNECTING ITS ASSOCIATED LINE WITH SAID SIGNALING CIRCUIT, A TESTING CIRCUIT, CONTROL MEANS IN SAID TESTING CIRCUIT FOR PROVIDING A MARKING INDICATIVE OF A SELECTED ONE OF THE LINES COMPRISING SAID PREDETERMINED GROUP OF LINES, ENABLING MEANS COUPLED TO SAID PREDETERMINED GROUP OF LINES FOR PROVIDING AN ENABLING SIGNAL WHEN NONE OF THE LINES IN SAID PREDETERMINED GROUP IS COUPLED TO SAID SIGNALING CIRCUIT, AND TEST ACCESS CIRCUIT MEANS COUPLED TO SAID TESTING CIRCUIT, SAID ENABLING MEANS, AND SAID PREDETERMINED GROUP OF LINES FOR ASSOCIATING SAID TESTING CIRCUIT WITH THE LINE INDICATED BY THE MARKING FROM SAID CONTROL MEANS WHEN SAID ENABLING MEANS PROVIDES SAID ENABLING SIGNAL.
Claim 2
Dependent Claim
149 words
IN A COMMUNICATION SYSTEM, A PLURALITY OF LINES EACH ADAPTED TO ORIGINATE AND TERMINATE COMMUNICATION CONNECTIONS, A SIGNALING CIRCUIT COMMON TO A PREDETERMINED GROUP OF SAID LINES, INDIVIDUAL SWITCHING MEANS ASSOCIATED WITH EACH OF SAID LINES COMPRISING SAID PREDETERMINED GROUP FOR SELECTIVELY CONNECTING ITS ASSOCIATED LINE WITH SAID SIGNALING CIRCUIT, A TESTING CIRCUIT, CONTROL MEANS IN SAID TESTING CIRCUIT FOR PROVIDING A MARKING INDICATIVE OF A SELECTED ONE OF THE LINES COMPRISING SAID PREDETERMINED GROUP OF LINES, ENABLING MEANS COUPLED TO SAID PREDETERMINED GROUP OF LINES FOR PROVIDING AN ENABLING SIGNAL WHEN NONE OF THE LINES IN SAID PREDETERMINED GROUP IS COUPLED TO SAID SIGNALING CIRCUIT, AND TEST ACCESS CIRCUIT MEANS COUPLED TO SAID TESTING CIRCUIT, SAID ENABLING MEANS, AND SAID PREDETERMINED GROUP OF LINES FOR ASSOCIATING SAID TESTING CIRCUIT WITH THE LINE INDICATED BY THE MARKING FROM SAID CONTROL MEANS WHEN SAID ENABLING MEANS PROVIDES SAID ENABLING SIGNAL.
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |