US2519448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing valve
Assignee: FAIRCHILD GROSS Manufacturing CO
•
Filing: 1947-03-14
•
Granted: 1950-08-22
•
Expires: 1967-03-14
Abstract
No abstract record available.
Inventors
- 👤 Wayne K Fairchild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:42
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/14; F16K11/18; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8259; Y10T137/8593; Y10T137/87056; Y10T137/87064; Y10T137/8708; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/87692
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1095003A
Cited
FR511989A
Cited
AT106969B
Cited
US1919234A
Cited
DE658144C
Cited
US2153029A
Cited
DE672325C
Cited
US2238916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |