US2430668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing machine and automatic control mechanism therefor
Assignee: American Machine and Metals Inc
•
Filing: 1942-04-15
•
Granted: 1947-11-11
•
Expires: 1962-04-15
Abstract
No abstract record available.
Inventors
- 👤 John W Chamberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:06
CPC Classifications
D; D06; D06F; D06F34/00; D06F34/08; Y; Y10; Y10T; Y10T137/00; Y10T137/4891; Y10T137/7287; Y10T137/731; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/8593; Y10T137/87048
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) | 1950-11-10 | 1951-05-12 | 1951-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-10 | 1955-05-12 | 1955-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-10 | 1959-05-12 | 1959-11-11 | $7700.00 | Window Closed / Lapsed |