US3286037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote line concentrator switching network
Assignee: AT&T Inc
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Filing: 1963-12-16
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Granted: 1966-11-15
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Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Douglas A Kerr
- 👤 Jr George F Swetnam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:30
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0008; H04Q3/0012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A SWITCHING NETWORK FOR A REMOTE TELEPHONE LINE CONCENTRATOR INCLUDING LINE SWITCHING MEANS; TRUNK SWITCHING MEANS; A PLURALITY OF LINKS COUPLING SAID LINE SWITCHING MEANS TO SAID TRUNK SWITCHING MEANS; LINE SELECTOR MEANS, TRUNK SELECTOR MEANS AND LINK SELECTOR MEANS FOR RESPECTIVELY CONTROLLING SAID LINE SWITCHING MEANS, TRUNK SWITCHING MEANS AND THE SELECTION OF A PARTICULAR LINK BETWEEN SAID LINE SWITCHING MEANS AND TRUNK SWITCHING MEANS; MEANS IN SAID LINE SELECTOR MEANS AND SAID TRUNK SELECTOR MEANS EFFECTIVE IN RESPONSE TO THE RECEPTION OF PARTICULAR BINARY CODE SIGNALS INDICATIVE OF A SELECTED LINE AND TRUNK FOR OPERATING SAID LINE SWITCHING MEANS AND TRUNK SWITCHING MEANS TO INTERCONNECT SAID LINE AND TRUNK; AND ADDITIONAL MEANS IN SAID LINK SELECTOR MEANS RESPONSIVE TO SELECTED PORTIONS OF SAID BINARY CODE SIGNALS INDICATIVE OF SAID SELECTED LINE FOR SELECTING A LINK BETWEEN SAID LINE SWITCHING MEANS AND SAID TRUNK SWITCHING MEANS.
Claim 2
Dependent Claim
147 words
A SWITCHING NETWORK FOR A REMOTE TELEPHONE LINE CONCENTRATOR INCLUDING LINE SWITCHING MEANS; TRUNK SWITCHING MEANS; A PLURALITY OF LINKS COUPLING SAID LINE SWITCHING MEANS TO SAID TRUNK SWITCHING MEANS; LINE SELECTOR MEANS, TRUNK SELECTOR MEANS AND LINK SELECTOR MEANS FOR RESPECTIVELY CONTROLLING SAID LINE SWITCHING MEANS, TRUNK SWITCHING MEANS AND THE SELECTION OF A PARTICULAR LINK BETWEEN SAID LINE SWITCHING MEANS AND TRUNK SWITCHING MEANS; MEANS IN SAID LINE SELECTOR MEANS AND SAID TRUNK SELECTOR MEANS EFFECTIVE IN RESPONSE TO THE RECEPTION OF PARTICULAR BINARY CODE SIGNALS INDICATIVE OF A SELECTED LINE AND TRUNK FOR OPERATING SAID LINE SWITCHING MEANS AND TRUNK SWITCHING MEANS TO INTERCONNECT SAID LINE AND TRUNK; AND ADDITIONAL MEANS IN SAID LINK SELECTOR MEANS RESPONSIVE TO SELECTED PORTIONS OF SAID BINARY CODE SIGNALS INDICATIVE OF SAID SELECTED LINE FOR SELECTING A LINK BETWEEN SAID LINE SWITCHING MEANS AND SAID TRUNK SWITCHING MEANS.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |