US2935077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bumpless manual automatic switch
Assignee: Honeywell Inc
•
Filing: 1956-03-01
•
Granted: 1960-05-03
•
Expires: 1976-03-01
Abstract
No abstract record available.
Inventors
- 👤 Allen H Keyser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:42
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/126; Y; Y10; Y10S; Y10S137/00; Y10S137/90; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409; Y10T137/2452
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2588799A
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US2658516A
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US2712321A
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US2729222A
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US2731023A
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US2747595A
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US2743710A
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US2834362A
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US2851047A
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US2763278A
Cited
US2863470A
Cited
US2884939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |