US2442419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus for internalcombustion engines
Assignee: Niles Bement Pond Co
•
Filing: 1944-11-09
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Granted: 1948-06-01
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Expires: 1964-11-09
Abstract
No abstract record available.
Inventors
- 👤 Lee Leighton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:22
CPC Classifications
F; F02; F02D; F02D1/00; F02D1/02; F02D1/08; F02D1/10; F02D1/12; F02D11/00; F02D11/06; F02D3/00; F02M; F02M69/00; F02M69/46; F02M69/467
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB349209A
Cited
US2217364A
Cited
GB475477A
Cited
US2179628A
Cited
FR839931A
Cited
US2248314A
Cited
US2138100A
Cited
US2330650A
Cited
US2397835A
Cited
US2419171A
Cited
US2416797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |