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US2430715A
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US
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Electric heater for cooking utensils
Assignee: LOWELL AND GRAYSON Manufacturing Co
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Filing: 1945-10-17
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Granted: 1947-11-11
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Expires: 1965-10-17
Abstract
No abstract record available.
Inventors
- 👤 John H Grayson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:48
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/56; A47J27/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1025576A
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US1678885A
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US2209832A
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US2244580A
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US2189127A
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US2233485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-10 | 1951-05-12 | 1951-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-10 | 1955-05-12 | 1955-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-10 | 1959-05-12 | 1959-11-11 | $7700.00 | Window Closed / Lapsed |