US2590168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosion engine ignition
Assignee: Centre National de la Recherche Scientifique
•
Filing: 1948-02-09
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Granted: 1952-03-25
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Expires: 1968-02-09
Abstract
No abstract record available.
Inventors
- 👤 Felici Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:04
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/06; F02P3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2203579A
Cited
US791856A
Cited
US1283492A
Cited
US2125035A
Cited
US2212404A
Cited
US2506472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |