US2556490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing by intermittent high and low speed rotation
Assignee: Avco Manufacturing Corp
•
Filing: 1945-08-27
•
Granted: 1951-06-12
•
Expires: 1965-08-27
Abstract
No abstract record available.
Inventors
- 👤 John W Chamberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:48
CPC Classifications
D; D06; D06F; D06F37/00; D06F37/02; D06F37/04; D06F37/10; D06F37/30; D06F37/36; D06F21/00; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T74/00; Y10T74/19; Y10T74/19555
Claims Analysis
Total Claims: 0
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US2283527A
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US2431925A
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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) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |