US1989335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing valve
Assignee: Individual
•
Filing: 1930-06-26
•
Granted: 1935-01-29
•
Expires: 1950-06-26
Abstract
No abstract record available.
Inventors
- 👤 Fred A Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:58
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/06; G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/1306; G05D23/132; G05D23/134; G05D23/1346
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) | 1938-01-28 | 1938-07-30 | 1939-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-01-28 | 1942-07-30 | 1943-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-01-28 | 1946-07-30 | 1947-01-29 | $7700.00 | Window Closed / Lapsed |