Patent US3335229A successfully refreshed from Google Patents.
US3335229A
Expired / Lapsed
US
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Arrangement for controlling traffic in a switching network
Assignee: AT&T Inc
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Filing: 1963-11-05
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Granted: 1967-08-08
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Expires: 1983-11-05
Abstract
No abstract record available.
Inventors
- 👤 Paul J Burke
- 👤 Kenneth D Hopper
- 👤 Edward E Schwenzfeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:16
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN COMBINATION, A SWITCHING OFFICE HAVING INCOMING TRUNKS, OUTGOING TRUNKS, AND SWITCHING MEANS RESPONSIVE TO SERVICE REQUEST SIGNALS ON SAID INCOMING TRUNKS FOR INTERCONNECTING SAID INCOMING AND OUTGOING TRUNKS, A FIRST OFFICE CONNECTABLE TO THE ORIGINATING END OF SAID INCOMING TRUNKS, A SECOND OFFICE CONNECTABLE TO SAID OUTGOING TRUNKS, MEANS INCLUDING ALTERNATE TRUNKS FOR INTERCONNECTING SAID FIRST AND SECOND OFFICES, AND LOAD SENSING MEANS AT SAID SWITCHING OFFICE EFFECTIVE IN RESPONSE TO SERVICE REQUEST
Claim 2
Dependent Claim
74 words
IN COMBINATION, A SWITCHING OFFICE HAVING INCOMING TRUNKS, OUTGOING TRUNKS, AND SWITCHING MEANS RESPONSIVE TO SERVICE REQUEST SIGNALS ON SAID INCOMING TRUNKS FOR INTERCONNECTING SAID INCOMING AND OUTGOING TRUNKS, A FIRST OFFICE CONNECTABLE TO THE ORIGINATING END OF SAID INCOMING TRUNKS, A SECOND OFFICE CONNECTABLE TO SAID OUTGOING TRUNKS, MEANS INCLUDING ALTERNATE TRUNKS FOR INTERCONNECTING SAID FIRST AND SECOND OFFICES, AND LOAD SENSING MEANS AT SAID SWITCHING OFFICE EFFECTIVE IN RESPONSE TO SERVICE REQUEST
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |