US2967666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination mixing valve and fitting for water heater
Assignee: AO Smith Corp
•
Filing: 1956-04-05
•
Granted: 1961-01-10
•
Expires: 1976-04-05
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:30
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F24; F24H; F24H9/00; F24H9/12; F24H9/13; F24H9/133; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86348; Y10T137/86372
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US966532A
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US1471784A
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US1891926A
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US1985929A
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US1962214A
Cited
GB414512A
Cited
US2652358A
Cited
US2764427A
Cited
US2628597A
Cited
US2684054A
Cited
US2803409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |