US2797569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clothes washing machine
Assignee: Apex Electrical Manufacturing Co
•
Filing: 1951-06-09
•
Granted: 1957-07-02
•
Expires: 1971-06-09
Abstract
No abstract record available.
Inventors
- 👤 James B Kirby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:28
CPC Classifications
D; D06; D06F; D06F37/00; D06F37/20; D06F37/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1600249A
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US1766213A
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US2311545A
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US2408509A
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US2625809A
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US2513844A
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US2517088A
Cited
US2512263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |