Patent US2944488A successfully refreshed from Google Patents.
US2944488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump control systems
Assignee: Curtiss Wright Corp
•
Filing: 1954-08-31
•
Granted: 1960-07-12
•
Expires: 1974-08-31
Abstract
No abstract record available.
Inventors
- 👤 Meyer Marvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:40
CPC Classifications
F; F04; F04D; F04D15/00; F04D15/0066; G; G05; G05D; G05D16/00; G05D16/14; G05D16/18; G05D16/187
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |