Patent US2450535A successfully refreshed from Google Patents.
US2450535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for automatically controlling the supply of liquid fuel to a prime mover
Assignee: ZF International UK Ltd
•
Filing: 1944-02-07
•
Granted: 1948-10-05
•
Expires: 1964-02-07
Abstract
No abstract record available.
Inventors
- 👤 Watson Ernest Ansley
- 👤 Ifield Richard Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:18
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/34
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) | 1951-10-05 | 1952-04-05 | 1952-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-05 | 1956-04-05 | 1956-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-05 | 1960-04-05 | 1960-10-05 | $7700.00 | Window Closed / Lapsed |