Patent US3411289A successfully refreshed from Google Patents.
US3411289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbocharged opposed piston engine having improved air charging and scavenging
Assignee: Fairbanks Morse Inc
•
Filing: 1967-03-21
•
Granted: 1968-11-19
•
Expires: 1987-03-21
Abstract
No abstract record available.
Inventors
- 👤 Anker K Antonsen
- 👤 Matthew L Foreman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:40
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/18; F02F1/22; F01; F01B; F01B7/00; F01B7/02; F01B7/14; F02B; F02B31/00; F02B41/00; F02B41/02; F02B41/10; F02B75/00; F02B75/28; F02B75/02; F02B2075/022; F02B2075/025; F02B3/00; F02B3/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |