US2648518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote control metering valve
Assignee: Curtis Automotive Devices Inc
•
Filing: 1949-10-17
•
Granted: 1953-08-11
•
Expires: 1969-10-17
Abstract
No abstract record available.
Inventors
- 👤 Russell R Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:26
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00485; F; F16; F16K; F16K7/00; F16K7/12; F16K7/14; F16K7/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE420021C
Cited
US365767A
Cited
US318748A
Cited
US1626289A
Cited
US1182030A
Cited
US1358968A
Cited
US1385058A
Cited
GB328204A
Cited
GB337569A
Cited
US2186024A
Cited
US2333775A
Cited
US2228552A
Cited
US2387792A
Cited
US2386051A
Cited
US2516825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |