US2911999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined starting and relief valves for internal combustion engines
Assignee: JOHN LAMB PUBLICATIONS AND INV
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Filing: 1956-03-07
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Granted: 1959-11-10
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Expires: 1976-03-07
Abstract
No abstract record available.
Inventors
- 👤 Lamb John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:32
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/168; F01; F01L; F01L13/00; F02; F02N; F02N9/00; F02N9/04; F02B; F02B3/00; F02B3/06; Y; Y10; Y10S; Y10S137/00; Y10S137/906; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7832; Y10T137/7837; Y10T137/7904
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) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |