US2520366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for washing clothes
Assignee: Apex Electrical Manufacturing Co
•
Filing: 1944-03-13
•
Granted: 1950-08-29
•
Expires: 1964-03-13
Abstract
No abstract record available.
Inventors
- 👤 James B Kirby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:50
CPC Classifications
D; D06; D06F; D06F21/00; D06F21/12; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7039
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2033146A
Cited
US1891842A
Cited
US1995318A
Cited
US2344982A
Cited
US2341894A
Cited
US2304454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |