US2675820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel mixing and delivery system
Assignee: Individual
•
Filing: 1946-02-01
•
Granted: 1954-04-20
•
Expires: 1966-02-01
Abstract
No abstract record available.
Inventors
- 👤 James A Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:58
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/60; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2132020A
Cited
US1519649A
Cited
US2021554A
Cited
US2063396A
Cited
US2147568A
Cited
US2259885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |