US3139486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic exchange systems
Assignee: International Standard Electric Corp
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Filing: 1961-07-27
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Granted: 1964-06-30
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Expires: 1981-07-27
Abstract
No abstract record available.
Inventors
- 👤 Bray Frederick Harry
- 👤 Ridler John Malcolm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:31
CPC Classifications
H; H04; H04Q; H04Q3/00; H04M; H04M15/00; H04M15/04; H04M15/06; H04Q1/00; H04Q1/18; H04Q1/30; H04Q1/32; H04Q1/36; H04Q11/00; H04Q11/04; H04Q3/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
AN AUTOMATIC TELEPHONE SYSTEM FOR EXTENDING CONNECTIONS BETWEEN CALLING AND CALLED LINES AND FOR RECORDING CHARGE EXACTION DATA, THEREFOR, CERTAIN OF SAID LINES HAVING ONE OF A NUMBER OF RESTRICTION CLASSIFICATIONS, CONTROL MEANS COMMON TO SAID LINES FOR GENERATING SIGNALS INDICATIVE OF SAID CHARGE EXACTION DATA AND THE SAID CLASSIFICATION OF EACH CALLING LINE, FIRST AND SECOND MAGNETIC MATRIX STORES ASSOCIATED WITH THE SAID LINES, THE FIRST STORE HAVING A PLURALITY OF SECTIONS FOR STORING CHARGE EXACTION DATA FOR RESPECTIVE LINES, THE SECOND STORE HAVING A PLURALITY OF SECTIONS FOR INDICATING THE RESPECTIVE TYPES OF
Claim 2
Dependent Claim
95 words
AN AUTOMATIC TELEPHONE SYSTEM FOR EXTENDING CONNECTIONS BETWEEN CALLING AND CALLED LINES AND FOR RECORDING CHARGE EXACTION DATA, THEREFOR, CERTAIN OF SAID LINES HAVING ONE OF A NUMBER OF RESTRICTION CLASSIFICATIONS, CONTROL MEANS COMMON TO SAID LINES FOR GENERATING SIGNALS INDICATIVE OF SAID CHARGE EXACTION DATA AND THE SAID CLASSIFICATION OF EACH CALLING LINE, FIRST AND SECOND MAGNETIC MATRIX STORES ASSOCIATED WITH THE SAID LINES, THE FIRST STORE HAVING A PLURALITY OF SECTIONS FOR STORING CHARGE EXACTION DATA FOR RESPECTIVE LINES, THE SECOND STORE HAVING A PLURALITY OF SECTIONS FOR INDICATING THE RESPECTIVE TYPES OF
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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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |