Patent US2547658A successfully refreshed from Google Patents.
US2547658A
Expired / Lapsed
US
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Electric switch contact
Assignee: General Electric Co
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Filing: 1947-02-24
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Granted: 1951-04-03
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Expires: 1967-02-24
Abstract
No abstract record available.
Inventors
- 👤 Palme Arthur
- 👤 Cyril H Hannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:25
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/02; H01H1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1105399A
Cited
US1248621A
Cited
US1990277A
Cited
GB395896A
Cited
US2255501A
Cited
US2247755A
Cited
US2379641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |