US2940432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine with air scavenging
Assignee: Motorenfabriek Thomassen NV
•
Filing: 1957-03-22
•
Granted: 1960-06-14
•
Expires: 1977-03-22
Abstract
No abstract record available.
Inventors
- 👤 Hijszeler Coenraad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:15
CPC Classifications
F; F02; F02B; F02B25/00; F02M; F02M69/00; F02M69/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US564576A
Cited
GB190821782A
Cited
FR402283A
Cited
US1146864A
Cited
US1741730A
Cited
GB298128A
Cited
GB338560A
Cited
US2199706A
Cited
US2240088A
Cited
US2230740A
Cited
DE729698C
Cited
US2698611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |