US2577564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow control system
Assignee: RCA Corp
•
Filing: 1946-07-27
•
Granted: 1951-12-04
•
Expires: 1966-07-27
Abstract
No abstract record available.
Inventors
- 👤 Sr Clifford C Borden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:39
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/06; G05D7/0617; G05D7/0629; G05D7/0635; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22; G01F1/26; G01P; G01P13/00; G01P13/0006; G01P13/0013; G01P13/002; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7759
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1924139A
Cited
US1999496A
Cited
US2236249A
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US2275833A
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US2317807A
Cited
US2386275A
Cited
US2325884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-03 | 1955-06-04 | 1955-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-03 | 1959-06-04 | 1959-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-03 | 1963-06-04 | 1963-12-04 | $7700.00 | Window Closed / Lapsed |