US2526069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modulating gas control means
Assignee: Deutsch Co
•
Filing: 1948-06-28
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Granted: 1950-10-17
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Expires: 1968-06-28
Abstract
No abstract record available.
Inventors
- 👤 Courtney C Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:42
CPC Classifications
F; F23; F23N; F23N1/00; F23N5/00; F23N5/02; F23N5/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/86944; Y10T137/86976; Y10T137/87096; Y10T137/87265; Y10T137/87917; Y10T137/87981
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1845999A
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US1874971A
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US2044427A
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US2174042A
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US2270722A
Cited
US2308555A
Cited
US2461608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |