US2638768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clothes wringer
Assignee: Chamberlain Corp
•
Filing: 1949-02-02
•
Granted: 1953-05-19
•
Expires: 1969-02-02
Abstract
No abstract record available.
Inventors
- 👤 Nicholas L Etten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
D; D06; D06F; D06F45/00; D06F45/02; D06F45/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US162380A
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US785770A
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US1599680A
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US1841057A
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US1699817A
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US2100074A
Cited
US2215639A
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US2327998A
Cited
US2316281A
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US2329115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |