Patent US3206551A successfully refreshed from Google Patents.
US3206551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency reporting alarm equipment for telephone stations
Assignee: AT&T Inc
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Filing: 1960-11-25
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Granted: 1965-09-14
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Expires: 1980-11-25
Abstract
No abstract record available.
Inventors
- 👤 Fred B Crowson
- 👤 Walter S Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:21
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/26; H04M1/27; H04M1/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A TELEPHONE SYSTEM, A CENTRAL OFFICE, A TELEPHONE STATION, A COMMUNICATION CHANNEL EXTENDING BETWEEN SAID OFFICE AND SAID STATION, ALARM CONTROL MEANS ASSOCIATED WITH SAID STATION AND SAID CHANNEL, MEANS IN SAID CONTROL MEANS RESPONSIVE TO AN EMERGENCY CONDITION AT SAID STATION FOR ORIGINATING AN ALARM CALL OVER SAID CHANNEL, MEANS IN SAID OFFICE RESPONSIVE TO THE ORIGINATION OF SAID CALL OVER SAID CHANNEL FOR SUPPLYING INFORMATION INDICATING THE IDENTITY OF SAID STATION, MEANS IN SAID CONTROL MEANS OPERABLE SUBSEQUENT TO SAID CALL ORIGINATION FOR TRANSMITTING CODE PULSES OVER SAID CHANNEL TO SAID OFFICE TO SIGNIFY THE NATURE OF THE EMERGENCY AT SAID STATION, AND MEANS IN SAID OFFICE RESPONSIVE TO SAID PULSES FOR RECORDING SAID SUPPLIES INFORMATION AND THE NATURE OF THE EMERGENCY SIGNIFIED BY SAID PULSES.
Claim 2
Dependent Claim
129 words
IN A TELEPHONE SYSTEM, A CENTRAL OFFICE, A TELEPHONE STATION, A COMMUNICATION CHANNEL EXTENDING BETWEEN SAID OFFICE AND SAID STATION, ALARM CONTROL MEANS ASSOCIATED WITH SAID STATION AND SAID CHANNEL, MEANS IN SAID CONTROL MEANS RESPONSIVE TO AN EMERGENCY CONDITION AT SAID STATION FOR ORIGINATING AN ALARM CALL OVER SAID CHANNEL, MEANS IN SAID OFFICE RESPONSIVE TO THE ORIGINATION OF SAID CALL OVER SAID CHANNEL FOR SUPPLYING INFORMATION INDICATING THE IDENTITY OF SAID STATION, MEANS IN SAID CONTROL MEANS OPERABLE SUBSEQUENT TO SAID CALL ORIGINATION FOR TRANSMITTING CODE PULSES OVER SAID CHANNEL TO SAID OFFICE TO SIGNIFY THE NATURE OF THE EMERGENCY AT SAID STATION, AND MEANS IN SAID OFFICE RESPONSIVE TO SAID PULSES FOR RECORDING SAID SUPPLIES INFORMATION AND THE NATURE OF THE EMERGENCY SIGNIFIED BY SAID PULSES.
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |