Patent US3308243A successfully refreshed from Google Patents.
US3308243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Establishing intraconcentrator connections in a remote line concentrator system
Assignee: AT&T Inc
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Filing: 1963-12-16
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Granted: 1967-03-07
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Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Lawrence C J Roscoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:38
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0008; H04Q3/0012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A REMOTE TELEPHONE LINE CONCENTRATOR SYSTEM INCLUDING A TELEPHONE CENTRAL OFFICE, A PLURALITY OF TRUNKS EXTENDING FROM SAID OFFICE, A PLURALITY OF REMOTE LINES, REMOTE SWITCHING MEANS INCLUDING FIRST AND SECOND STAGE NETWORK MEANS, MEANS RESPONSIVE TO A CALLING CONDITION ON ONE OF SAID LINES FOR EXTENDING A CONNECTION TO SAID LINE OVER A PATH INCLUDING A FIRST TRUNK AND SAID FIRST NETWORK MEANS, MEANS FOR EXTENDING A CONNECTION TO A CALLED LINE OVER A PATH INCLUDING A SECOND TRUNK AND SAID FIRST AND SECOND NETWORK MEANS, AND ADDITIONAL MEANS FOR GOVERNING SAID SECOND NETWORK MEANS TO SIMULTA-
Claim 2
Dependent Claim
98 words
A REMOTE TELEPHONE LINE CONCENTRATOR SYSTEM INCLUDING A TELEPHONE CENTRAL OFFICE, A PLURALITY OF TRUNKS EXTENDING FROM SAID OFFICE, A PLURALITY OF REMOTE LINES, REMOTE SWITCHING MEANS INCLUDING FIRST AND SECOND STAGE NETWORK MEANS, MEANS RESPONSIVE TO A CALLING CONDITION ON ONE OF SAID LINES FOR EXTENDING A CONNECTION TO SAID LINE OVER A PATH INCLUDING A FIRST TRUNK AND SAID FIRST NETWORK MEANS, MEANS FOR EXTENDING A CONNECTION TO A CALLED LINE OVER A PATH INCLUDING A SECOND TRUNK AND SAID FIRST AND SECOND NETWORK MEANS, AND ADDITIONAL MEANS FOR GOVERNING SAID SECOND NETWORK MEANS TO SIMULTA-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |