Patent US1834680A successfully refreshed from Google Patents.
US1834680A
Expired / Lapsed
US
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Mixing valve
Assignee: Individual
•
Filing: 1929-09-16
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Granted: 1931-12-01
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Expires: 1949-09-16
Abstract
No abstract record available.
Inventors
- 👤 Chartrand Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:07
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/1306; G05D23/132; G05D23/134; G05D23/1346; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/86992; Y10T137/87
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-11-30 | 1935-06-01 | 1935-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-11-30 | 1939-06-01 | 1939-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-11-30 | 1943-06-01 | 1943-12-01 | $7700.00 | Window Closed / Lapsed |