US2469448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine
Assignee: Texaco Inc
•
Filing: 1945-06-21
•
Granted: 1949-05-10
•
Expires: 1965-06-21
Abstract
No abstract record available.
Inventors
- 👤 Everett M Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:45
CPC Classifications
F; F02; F02B; F02B3/00; F02B3/02; F02B75/00; F02B75/12; F02B2075/125; F02B2275/00; F02B2275/42; 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)
US1760322A
Cited
US2001358A
Cited
US2142280A
Cited
US2100143A
Cited
US2055814A
Cited
US2146265A
Cited
US2269104A
Cited
US2349305A
Cited
US2293412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |