US3137771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paging system
Assignee: International Standard Electric Corp
•
Filing: 1962-06-12
•
Granted: 1964-06-16
•
Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Klein Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:40
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/02; H04M11/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
IN A PAGING SYSTEM FOR EXTENDING CONNECTIONS BETWEEN CALLING AND CALLED SUBSCRIBERS EACH HAVING INDIVIDUAL CODE NUMBERS ASSIGNED THERETO, MEANS CONTROLLED BY ANY CALLING SUBSCRIBER FOR GENERATING SIGNALS INDICATIVE OF THE CODE NUMBER OF ANY DESIRED CALLED SUBSCRIBER, MEANS RESPONSIVE TO THE SAID GENERATION OF SIGNALS FOR RECORDING SAID SIGNALS IN ONE OF A PLURALITY OF PAGING STORAGE DEVICES, AND FOR SIGNALLING THE CALLED SUBSCRIBER, MEANS CONTROLLED BY ANY ANSWERING CALLED SUBSCRIBER FOR GENERATING SIGNALS INDICATIVE OF THE CODE NUMBER OF THE ANSWERING CALLED PARTY, MEANS RESPONSIVE TO THE LAST SAID GENERATION OF SIGNALS FOR RECORDING THE LAST SAID SIGNALS IN ONE OF A PLURALITY OF ANSWERING STORAGE DEVICES, MATCHING MEANS FOR DETERMINING THE PAGING STORAGE MEANS AND ANSWERING STORAGE MEANS CONTAINING THE SAME RECORDED SIGNALS, AND SWITCH MEANS RESPONSIVE TO SAID MATCHING OPERATION FOR EXTENDING A CONNECTION BETWEEN THE SAID CALLING AND CALLED SUBSCRIBERS.
Claim 2
Dependent Claim
145 words
IN A PAGING SYSTEM FOR EXTENDING CONNECTIONS BETWEEN CALLING AND CALLED SUBSCRIBERS EACH HAVING INDIVIDUAL CODE NUMBERS ASSIGNED THERETO, MEANS CONTROLLED BY ANY CALLING SUBSCRIBER FOR GENERATING SIGNALS INDICATIVE OF THE CODE NUMBER OF ANY DESIRED CALLED SUBSCRIBER, MEANS RESPONSIVE TO THE SAID GENERATION OF SIGNALS FOR RECORDING SAID SIGNALS IN ONE OF A PLURALITY OF PAGING STORAGE DEVICES, AND FOR SIGNALLING THE CALLED SUBSCRIBER, MEANS CONTROLLED BY ANY ANSWERING CALLED SUBSCRIBER FOR GENERATING SIGNALS INDICATIVE OF THE CODE NUMBER OF THE ANSWERING CALLED PARTY, MEANS RESPONSIVE TO THE LAST SAID GENERATION OF SIGNALS FOR RECORDING THE LAST SAID SIGNALS IN ONE OF A PLURALITY OF ANSWERING STORAGE DEVICES, MATCHING MEANS FOR DETERMINING THE PAGING STORAGE MEANS AND ANSWERING STORAGE MEANS CONTAINING THE SAME RECORDED SIGNALS, AND SWITCH MEANS RESPONSIVE TO SAID MATCHING OPERATION FOR EXTENDING A CONNECTION BETWEEN THE SAID CALLING AND CALLED SUBSCRIBERS.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |