Patent US3317880A successfully refreshed from Google Patents.
US3317880A
Expired / Lapsed
US
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Plugs with built-in phase inverters
Assignee: INDUSTRIAKTIEBOLAGET ELEKTRO V
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Filing: 1964-01-22
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Granted: 1967-05-02
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Expires: 1984-01-22
Abstract
No abstract record available.
Inventors
- 👤 Meyer Sven Fredrik Erhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:15
CPC Classifications
H; H01; H01R; H01R24/00; H01R24/28; H01R24/30; H01R29/00; H01R13/00; H01R13/64; H01R2105/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PLUG WITH A BUILT-IN PHASE INVERTER COMPRISING AT LEAST THREE CONTACT PINS ARRANGED SIDE BY SIDE IN INSULATED RELATIONSHIP, AND ROTATABLE MEANS IN SAID PLUG WITH TWO ADJOINING ONES OF SAID CONTACT PINS THEREIN MOUNTED ROTATABLE WITH RESPECT TO THE REMAINDER OF THE PLUG TO REPOSIITION SAID TWO ADJOINING ONES OF SAID CONTCT PINS WITH RESPECT TO A THIRD ONE OF SAID CONTACT PINS ARRANGED IN THE REMAINDER OF THE PLUG UPON MOVEMENT OF SAID ROTATABLE MEANS WHEREBY THE PHASE INVERSION IS REALIZED WHEN THE ROTATABLE MEANS IS TURNED FROM ONE INTO ANOTHER PREDETERMINED POSITION.
Claim 2
Dependent Claim
96 words
A PLUG WITH A BUILT-IN PHASE INVERTER COMPRISING AT LEAST THREE CONTACT PINS ARRANGED SIDE BY SIDE IN INSULATED RELATIONSHIP, AND ROTATABLE MEANS IN SAID PLUG WITH TWO ADJOINING ONES OF SAID CONTACT PINS THEREIN MOUNTED ROTATABLE WITH RESPECT TO THE REMAINDER OF THE PLUG TO REPOSIITION SAID TWO ADJOINING ONES OF SAID CONTCT PINS WITH RESPECT TO A THIRD ONE OF SAID CONTACT PINS ARRANGED IN THE REMAINDER OF THE PLUG UPON MOVEMENT OF SAID ROTATABLE MEANS WHEREBY THE PHASE INVERSION IS REALIZED WHEN THE ROTATABLE MEANS IS TURNED FROM ONE INTO ANOTHER PREDETERMINED POSITION.
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |