US2504013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clothes-washing machine and automatic fluid operated control device therefor
Assignee: ELLIS DRIER CO
•
Filing: 1944-12-01
•
Granted: 1950-04-11
•
Expires: 1964-12-01
Abstract
No abstract record available.
Inventors
- 👤 Hubert C Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:29
CPC Classifications
D; D06; D06F; D06F33/00; D06F33/04; D06F33/08; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8175; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/86493
Claims Analysis
Total Claims: 0
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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) | 1953-04-10 | 1953-10-10 | 1954-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-10 | 1957-10-10 | 1958-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-10 | 1961-10-10 | 1962-04-11 | $7700.00 | Window Closed / Lapsed |