US2931884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled heat cooking vessel
Assignee: Sunbeam Corp
•
Filing: 1957-01-23
•
Granted: 1960-04-05
•
Expires: 1977-01-23
Abstract
No abstract record available.
Inventors
- 👤 Jepson Ivar
- 👤 Ludvik J Koci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:49
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0213; H01; H01H; H01H37/00; H01H37/02; H01H37/12; H01H37/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1842958A
Cited
US2199638A
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US2421538A
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US2518941A
Cited
US2571782A
Cited
US2528254A
Cited
GB664113A
Cited
US2725460A
Cited
US2744995A
Cited
US2774846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |