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US3204036A
Expired / Lapsed
US
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Automatic telephone exchanges
Assignee: International Standard Electric Corp
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Filing: 1960-06-23
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Granted: 1965-08-31
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Expires: 1980-06-23
Abstract
No abstract record available.
Inventors
- 👤 Bray Frederick Harry
- 👤 Ridler John Malcolm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:44
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; H04J; H04J3/00; H04J3/16; H04J3/1682; H04J3/17; H04M; H04M15/00; H04M15/04; H04Q3/00; H04Q3/0004; H04Q3/0008; H04Q3/0012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN AUTOMATIC TELECOMMUNICATION EXCHANGE SYSTEM COMPRISING: A PLURALITY OF LINES AND STATIONS THEREON, LINE CIRCUITS ASSOCIATED WITH EACH OF SAID LINES, REGISTER MEANS, CLASS-OF-SERVICE INDICATOR MEANS COMMON TO A PLURALITY OF SAID LINE CIRCUITS, MEANS RESPONSIVE TO A CALLING CONDITION ON ANY OF SAID LINES FOR ESTABLISHING A LINE-REGISTER CONNECTION BETWEEN SAID CALLING LINE AND SAID REGISTER MEANS, MEANS RESPONSIVE TO THE ESTABLISHMENT OF SAID LINEREGISTER CONNECTION FOR TRANSMITTING AN INTERROGATING SIGNAL FROM SAID REGISTER MEANS TO SAID INDICATOR MEANS OVER SAID LINE-REGISTER CONNECTION, AND AN INDEPENDENT INDICATOR-REGISTER CONNECTION MEANS ACTING RESPONSIVE TO SAID INTERROGATION SIGNAL FOR TRANSMITTING A CLASS INDICATION SIGNAL INDEPENDENT OF SAID LINE-REGISTER CONNECTION TO SAID REGISTER.
Claim 2
Dependent Claim
110 words
AN AUTOMATIC TELECOMMUNICATION EXCHANGE SYSTEM COMPRISING: A PLURALITY OF LINES AND STATIONS THEREON, LINE CIRCUITS ASSOCIATED WITH EACH OF SAID LINES, REGISTER MEANS, CLASS-OF-SERVICE INDICATOR MEANS COMMON TO A PLURALITY OF SAID LINE CIRCUITS, MEANS RESPONSIVE TO A CALLING CONDITION ON ANY OF SAID LINES FOR ESTABLISHING A LINE-REGISTER CONNECTION BETWEEN SAID CALLING LINE AND SAID REGISTER MEANS, MEANS RESPONSIVE TO THE ESTABLISHMENT OF SAID LINEREGISTER CONNECTION FOR TRANSMITTING AN INTERROGATING SIGNAL FROM SAID REGISTER MEANS TO SAID INDICATOR MEANS OVER SAID LINE-REGISTER CONNECTION, AND AN INDEPENDENT INDICATOR-REGISTER CONNECTION MEANS ACTING RESPONSIVE TO SAID INTERROGATION SIGNAL FOR TRANSMITTING A CLASS INDICATION SIGNAL INDEPENDENT OF SAID LINE-REGISTER CONNECTION TO SAID REGISTER.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |