Patent US2640420A successfully refreshed from Google Patents.
US2640420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid fuel injection pump for internal-combustion engines
Assignee: CAV Ltd
•
Filing: 1951-06-15
•
Granted: 1953-06-02
•
Expires: 1971-06-15
Abstract
No abstract record available.
Inventors
- 👤 Muraszew Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:16
CPC Classifications
F; F02; F02M; F02M59/00; F02M59/20; F02M59/36; F02M69/00; F02M69/46; F02M69/50; F02M2700/00; F02M2700/05; F02M2700/055; F02M2700/13; F02M2700/1317; F02M2700/1364; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86115; Y10T137/86123
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) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |