US2570148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water level and temperature control system for washing machines
Assignee: Prosperity Co Inc
•
Filing: 1950-03-31
•
Granted: 1951-10-02
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Expires: 1970-03-31
Abstract
No abstract record available.
Inventors
- 👤 Neuroth John
- 👤 James C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:15
CPC Classifications
D; D06; D06F; D06F34/00; D06F34/08; D06F2103/00; D06F2103/16; D06F2103/18; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/729; Y10T137/7358; Y10T137/7368; Y10T137/7404; Y10T137/7722; Y10T137/7737; Y10T137/7758; Y10T137/7762
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2302923A
Cited
US2328073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |