US3407790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uniflow scavenged engine having improved gaseous fuel admission
Assignee: Individual
•
Filing: 1967-04-12
•
Granted: 1968-10-29
•
Expires: 1987-04-12
Abstract
No abstract record available.
Inventors
- 👤 Anker K Antonsen
- 👤 Matthew L Foreman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:35
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/28; F01; F01B; F01B7/00; F01B7/02; F01B7/14; F02B25/00; F02B31/00; F02B2700/00; F02B2700/03; F02B2700/031; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US724333A
Cited
GB190907515A
Cited
FR520131A
Cited
DE335533C
Cited
US2232841A
Cited
US2686503A
Cited
US2767691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |