US2879781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus
Assignee: Honeywell Inc
•
Filing: 1955-11-18
•
Granted: 1959-03-31
•
Expires: 1975-11-18
Abstract
No abstract record available.
Inventors
- 👤 Alvin E Gimson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:59
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/42; Y; Y10; Y10S; Y10S60/00; Y10S60/907; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB445867A
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US2340489A
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US2601867A
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US2573943A
Cited
US2625136A
Cited
US2688253A
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US2641227A
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FR1050795A
Cited
GB719275A
Cited
US2738772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |