US2776821A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel mixing control device
Assignee: Individual
•
Filing: 1952-11-14
•
Granted: 1957-01-08
•
Expires: 1972-11-14
Abstract
No abstract record available.
Inventors
- 👤 Davis J Rex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:44
CPC Classifications
F; F02; F02M; F02M7/00; F02M7/12; F02M19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1305744A
Cited
US1319789A
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US1321471A
Cited
US1325688A
Cited
US1132314A
Cited
US1383044A
Cited
FR510346A
Cited
US1477280A
Cited
US2035191A
Cited
US2190314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |