Patent US3515835A successfully refreshed from Google Patents.
US3515835A
Expired / Lapsed
US
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Illuminated pushbutton switch
Assignee: Societe de Fabrication dInstruments de Mesure SFIM SA
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Filing: 1968-05-27
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Granted: 1970-06-02
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Expires: 1988-05-27
Abstract
No abstract record available.
Inventors
- 👤 Robert Debras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:15
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/023; H01H2013/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3163708A
Cited
US3157771A
Cited
US3163740A
Cited
US3197598A
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US3249705A
Cited
US3268889A
Cited
US3267245A
Cited
US3270162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |