Patent US2485990A successfully refreshed from Google Patents.
US2485990A
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US
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Deep well cooker for electric stoves having elevatable heating element
Assignee: Sparks Withington Co
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Filing: 1944-07-03
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Granted: 1949-10-25
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Expires: 1964-07-03
Abstract
No abstract record available.
Inventors
- 👤 Kilbourn H Snow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:39
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/10; F24C15/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US923224A
Cited
US890857A
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US1377092A
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US2001995A
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US2025252A
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US2257580A
Cited
US2416645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |