US2570342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump control
Assignee: Vickers Inc
•
Filing: 1945-11-26
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Granted: 1951-10-09
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Expires: 1965-11-26
Abstract
No abstract record available.
Inventors
- 👤 Ferris T Harrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:27
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/08; F15; F15B; F15B21/00; F15B21/14; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/4078; F16H61/4096; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20569; F15B2211/20576; F15B2211/21; F15B2211/212
Claims Analysis
Total Claims: 0
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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) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |