Patent US2833137A successfully refreshed from Google Patents.
US2833137A
Expired / Lapsed
US
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Combination washing and drying machine
Assignee: Whirlpool Corp
•
Filing: 1953-05-27
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Granted: 1958-05-06
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Expires: 1973-05-27
Abstract
No abstract record available.
Inventors
- 👤 Geldhof Peter Eduard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:02
CPC Classifications
D; D06; D06F; D06F29/00; D06F29/005; D06F58/00; D06F58/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1165487A
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US2566488A
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US2540724A
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US2495535A
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US2555268A
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US2552855A
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US2609623A
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US2615320A
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US2677897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |