Patent US2702840A successfully refreshed from Google Patents.
US2702840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auto light switch and battery saver
Assignee: Individual
•
Filing: 1952-06-13
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Granted: 1955-02-22
•
Expires: 1972-06-13
Abstract
No abstract record available.
Inventors
- 👤 Sr George A Jackson
- 👤 Ola M Elifritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:05
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2075305A
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US1231561A
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US1169089A
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US1414913A
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US1448058A
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US1894070A
Cited
GB357787A
Cited
US2131264A
Cited
US2463216A
Cited
US2452762A
Cited
FR935490A
Cited
US2603092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-21 | 1958-08-23 | 1959-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-21 | 1962-08-23 | 1963-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-21 | 1966-08-23 | 1967-02-22 | $7700.00 | Window Closed / Lapsed |