US2776352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric snap-action switch devices
Assignee: SUNVIC CONTROLS Ltd
•
Filing: 1954-02-02
•
Granted: 1957-01-01
•
Expires: 1974-02-02
Abstract
No abstract record available.
Inventors
- 👤 Davis Neville Ryland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:43
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/60; H01H37/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2189996A
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GB511625A
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US2236699A
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US2489391A
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US2486365A
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US2506272A
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US2510021A
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US2599473A
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US2624819A
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US2658975A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |