US2476320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective fluid valve
Assignee: Individual
•
Filing: 1945-01-11
•
Granted: 1949-07-19
•
Expires: 1965-01-11
Abstract
No abstract record available.
Inventors
- 👤 Charles L Paulus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:27
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/022; F16K11/10; F16K11/14; F16K11/16; F16K11/163; F16K11/165; F16K15/00; F16K15/14; F16K15/1401; F16K15/16; F16K15/162; F16K2200/00; F16K2200/20; F16K2200/203; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7859; Y10T137/7861; Y10T137/7879; Y10T137/7888; Y10T137/7891; Y10T137/7892
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) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |