US2746430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow mechanism
Assignee: AO Smith Corp
•
Filing: 1952-12-06
•
Granted: 1956-05-22
•
Expires: 1972-12-06
Abstract
No abstract record available.
Inventors
- 👤 William E Steen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:57
CPC Classifications
G; G01; G01F; G01F3/00; G01F3/02; G01F3/04; G01F3/14; G01F3/16; G01F3/18; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86509
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2170015A
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US2356273A
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US2503881A
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US2630101A
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US2601966A
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US2628595A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |