US2451459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion air flow responsive carbureting apparatus
Assignee: Stewart Warner Corp
•
Filing: 1944-06-23
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Granted: 1948-10-19
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Expires: 1964-06-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Lynn A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:21
CPC Classifications
F; F23; F23D; F23D11/00; Y; Y10; Y10S; Y10S261/00; Y10S261/02; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2514
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1437626A
Cited
US1437611A
Cited
US1691600A
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US1724296A
Cited
US1726721A
Cited
US2112750A
Cited
US2214181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-19 | 1952-04-19 | 1952-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-19 | 1956-04-19 | 1956-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-19 | 1960-04-19 | 1960-10-19 | $7700.00 | Window Closed / Lapsed |