US3105878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time division multiplex telephone switching system having single and multiple party pre-address and priority check circuitry
Assignee: General Dynamics Corp
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Filing: 1960-05-13
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Granted: 1963-10-01
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Expires: 1980-05-13
Abstract
No abstract record available.
Inventors
- 👤 Frankel Theodor
- 👤 William H Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:36
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
IN A TIME DIVISION MULTIPLEX TELEPHONE SYSTEM, A GROUP OF LINES ASSOCIATED WITH A COMMON TRANSMISSION CHANNEL, MEANS FOR COUPLING A FIRST LINE TO SAID COMMON TRANSMISSION CHANNEL DURING A PARTICULAR TIME SLOT WITHIN SECURRING TRANSMISSION FRAMES, CALL ROUTING MEANS, MEANS CAPABLE OF TRANSMITTING A MULTIPLE PARTY PRE-ADDRESS SIGNAL TO SAID CALL ROUTING MEANS, AND MEANS WITHIN SAID CALL ROUTING MEANS RESPONSIVE TO THE TRANSMISSION OF SAID MULTIPLE PARTY PRE-ADDRESS SIGNAL FOR CAUSING A PLURALITY OF LINES OF SAID GROUP OF LINES TO BE COUPLED TO SAID COMMON
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |