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US3039700A
Expired / Lapsed
US
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Liquid-metering device
Assignee: Ricardo PLC
•
Filing: 1960-02-05
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Granted: 1962-06-19
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Expires: 1980-02-05
Abstract
No abstract record available.
Inventors
- 👤 Gerald E Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:23
CPC Classifications
F; F16; F16N; F16N27/00; F23; F23D; F23D11/00; F23D11/04; F23D11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1712184A
Cited
US1957398A
Cited
US1999946A
Cited
US2149921A
Cited
US2282622A
Cited
US2506738A
Cited
US2671405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |