US2644476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control valve
Assignee: Maytag Corp
•
Filing: 1950-06-10
•
Granted: 1953-07-07
•
Expires: 1970-06-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:34
CPC Classifications
D; D06; D06F; D06F39/00; D06F39/08; D06F39/088; F; F16; F16K; F16K11/00; F16K11/10; F16K11/20; F16K11/24; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190312336A
Cited
CH154109A
Cited
US2214287A
Cited
US2200578A
Cited
US2389134A
Cited
US2500750A
Cited
US2453409A
Cited
US2454929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |