Patent US3284648A successfully refreshed from Google Patents.
US3284648A
Expired / Lapsed
US
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Switching circuit
Assignee: Licentia Patent Verwaltungs GmbH
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Filing: 1965-04-07
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Granted: 1966-11-08
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Expires: 1985-04-07
Abstract
No abstract record available.
Inventors
- 👤 Koppelmann Floris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:39
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A POLYPHASE SYSTEM HAVING A PLURALITY OF N LINES, N BEING A LEAST 3, NONE OF WHICH IS A NEUTRAL LINE, THERE BEING RECTIFIER-EQUIPPED SWITCHING MEANS INCORPORATED IN ONLY (N-1) OF SAID N LINES, RESPECTIVELY, EACH OF SAID SWITCHING MEANS INCLUDING AT LEAST ONE SWITCH AND A CIRCUIT WHICH IS CONNECTED IN PARALLEL WITH SUCH SWITCH AND WHICH INCLUDES A SEMICONDUCTOR RECTIFIER, THE SEMICONDUCTOR RECTIFIERS ALL BEING CONNECTED TO HAVE THE SAME POLARITY WITH RESPECT TO A LOAD CONNECTED TO THE SYSTEM.
Claim 2
Dependent Claim
82 words
A POLYPHASE SYSTEM HAVING A PLURALITY OF N LINES, N BEING A LEAST 3, NONE OF WHICH IS A NEUTRAL LINE, THERE BEING RECTIFIER-EQUIPPED SWITCHING MEANS INCORPORATED IN ONLY (N-1) OF SAID N LINES, RESPECTIVELY, EACH OF SAID SWITCHING MEANS INCLUDING AT LEAST ONE SWITCH AND A CIRCUIT WHICH IS CONNECTED IN PARALLEL WITH SUCH SWITCH AND WHICH INCLUDES A SEMICONDUCTOR RECTIFIER, THE SEMICONDUCTOR RECTIFIERS ALL BEING CONNECTED TO HAVE THE SAME POLARITY WITH RESPECT TO A LOAD CONNECTED TO THE SYSTEM.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |