US2514532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control valve
Assignee: Manning Maxwell and Moore Inc
•
Filing: 1944-08-24
•
Granted: 1950-07-11
•
Expires: 1964-08-24
Abstract
No abstract record available.
Inventors
- 👤 Earle F Allen
- 👤 Lewis M Burrows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:40
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/10; F16K27/105; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412; Y10T29/49416; Y10T29/49421
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191413035A
Cited
US1650969A
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US1642242A
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US1743413A
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US1674076A
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US1693032A
Cited
US1836374A
Cited
DE529169C
Cited
US1916738A
Cited
US2128111A
Cited
GB515095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |