US2659518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring valve with rigidly connected reciprocating valves
Assignee: Individual
•
Filing: 1949-07-13
•
Granted: 1953-11-17
•
Expires: 1969-07-13
Abstract
No abstract record available.
Inventors
- 👤 John H Donnelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:22
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/28; G01F11/30; G01F11/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US984630A
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US1041445A
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US1186349A
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US1342173A
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US1585025A
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US2216347A
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US2248958A
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US2464030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |