US2800923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing valve
Assignee: Individual
•
Filing: 1953-04-21
•
Granted: 1957-07-30
•
Expires: 1973-04-21
Abstract
No abstract record available.
Inventors
- 👤 John J Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:50
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/04; F16K11/056; F16K11/0565; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86815; Y10T137/86823; Y10T137/87056; Y10T137/87072; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/87692
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US499231A
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US742327A
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US1485957A
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US1577355A
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US1882953A
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US2301439A
Cited
US2428410A
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US2604904A
Cited
US2609206A
Cited
US2596464A
Cited
US2653793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |