Patent US798440A successfully refreshed from Google Patents.
Patent US2823975A successfully refreshed from Google Patents.
US2823975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing machine
Assignee: Apex Electrical Manufacturing Co
•
Filing: 1954-04-05
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Granted: 1958-02-18
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Expires: 1974-04-05
Abstract
No abstract record available.
Inventors
- 👤 James B Kirby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:13
CPC Classifications
D; D06; D06F; D06F23/00; D06F23/04; D06F39/00; D06F39/12; D06F39/125; D06F2103/00; D06F2103/26; D06F33/00; D06F33/30; D06F33/48
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
67 words
THAT METHOD OF WASHING AND EXTRACTING IN A SYMMETRICAL CONTAINER WHICH COMPRISES MOVING THE CONTAINER ABOUT A POINT ON THE CENTRAL AXIS THEREOF CAUSE ALL OTHER POINTS ON SAID AXIS TO MOVE IN A CIRCULAR PATH WITH A PREDETERMINED ANGULAR VELOCITY WHEREBY THE CONTAINER IS PROGRESSIVELY TILTED TO EFFECT WASHING AND THEREAFTER ROTATING SAID CONTAINER ABOUT SAID AXIS WITH SUBSTANTIALLY THE SAME ANGULAR VELOCITY TO EFFECT EXTRACTION.
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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) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |