US2725112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flood control means
Assignee: Flood Control Valve Co
•
Filing: 1954-10-20
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Granted: 1955-11-29
•
Expires: 1974-10-20
Abstract
No abstract record available.
Inventors
- 👤 Weisman Sam
- 👤 Fine James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:18
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/12; F16L55/128; F16L55/132; E; E03; E03F; E03F5/00; E03F5/22; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/6988; Y10T137/7287; Y10T137/7358; Y10T137/7423; Y10T137/7426; Y10T137/7433
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) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |