US3208220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker control
Assignee: Alcatel Lucent SAS
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Filing: 1963-12-03
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Granted: 1965-09-28
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Expires: 1983-12-03
Abstract
No abstract record available.
Inventors
- 👤 Lechat Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:29
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/34; H01H3/00; H01H3/22; H01H3/30; H01H2003/3094; H01H2033/306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN AN ELECTRIC CIRCUIT BREAKER CONTROL SYSTEM HAVING FIRST MEANS FOR CONTROLLING THE CLOSING OF A CIRCUIT BREAKER UNDER THE ACTION OF A FLUID UNDER PRESSURE AND SECOND MEANS FOR CONTROLLING THE OPENING THEREOF UNDER THE ACTION OF A FLUID PRESSURE, THE IMPROVEMENT ESSENTIALLY CONSISTING OF AT LEAST TWO ACCUMULATORS FOR STORING AND MAINTAINING THEREIN FLUID UNDER PRESSURE, AND CONNECTING MEANS OPERATIVELY CONNECTING SAID ACCUMULATORS WITH SAID FIRST
Claim 2
Dependent Claim
68 words
IN AN ELECTRIC CIRCUIT BREAKER CONTROL SYSTEM HAVING FIRST MEANS FOR CONTROLLING THE CLOSING OF A CIRCUIT BREAKER UNDER THE ACTION OF A FLUID UNDER PRESSURE AND SECOND MEANS FOR CONTROLLING THE OPENING THEREOF UNDER THE ACTION OF A FLUID PRESSURE, THE IMPROVEMENT ESSENTIALLY CONSISTING OF AT LEAST TWO ACCUMULATORS FOR STORING AND MAINTAINING THEREIN FLUID UNDER PRESSURE, AND CONNECTING MEANS OPERATIVELY CONNECTING SAID ACCUMULATORS WITH SAID FIRST
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |