US2685869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine
Assignee: Texaco Inc
•
Filing: 1948-09-21
•
Granted: 1954-08-10
•
Expires: 1968-09-21
Abstract
No abstract record available.
Inventors
- 👤 William N Fenney
- 👤 Reynolds Blake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:05
CPC Classifications
F; F02; F02B; F02B19/00; F02B19/08; F02B19/14; F02B3/00; F02B3/02; 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)
GB185706A
Cited
US1835490A
Cited
US1805670A
Cited
FR730932A
Cited
GB386785A
Cited
US2051204A
Cited
US2036253A
Cited
US2061826A
Cited
US2317536A
Cited
US2431875A
Cited
US2411740A
Cited
US2431857A
Cited
US2412821A
Cited
US2448950A
Cited
US2484009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |