Patent US5662228A successfully refreshed from Google Patents.
Patent US2843943A successfully refreshed from Google Patents.
US2843943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined washer and drier
Assignee: Whirlpool Corp
•
Filing: 1953-11-02
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Granted: 1958-07-22
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Expires: 1973-11-02
Abstract
No abstract record available.
Inventors
- 👤 Geldhof Peter Eduard
- 👤 Clifton A Cobb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:55
CPC Classifications
D; D06; D06F; D06F29/00; D06F58/00; D06F58/20; D06F58/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2453859A
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US2460422A
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US2619736A
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US2607209A
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US2644245A
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US2635354A
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US2664646A
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US2720037A
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US2654160A
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US2724906A
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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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |