Patent US2687612A successfully refreshed from Google Patents.
US2687612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peak holding fuel control for internal-combustion engines
Assignee: Individual
•
Filing: 1952-06-24
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Granted: 1954-08-31
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Expires: 1972-06-24
Abstract
No abstract record available.
Inventors
- 👤 Richard S Anderson
- 👤 James R Shull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:57
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/0005; F; F02; F02D; F02D41/00; F02D41/02; F02D41/14; F02D41/1401; F02D41/1408; G05B; G05B13/00; G05B13/02; G05B13/0205; G05B13/021; G05B13/0215; Y; Y10; Y10S; Y10S236/00; Y10S236/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |