US3447444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric cooking apparatus
Assignee: Electro Char Corp
•
Filing: 1967-08-01
•
Granted: 1969-06-03
•
Expires: 1987-08-01
Abstract
No abstract record available.
Inventors
- 👤 Victor M Berger
- 👤 Sidney A Scherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:13
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/06; A; A47; A47J; A47J37/00; A47J37/06; A47J37/067; A47J37/0676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2156216A
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US2290658A
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US2852654A
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US2856502A
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US3225682A
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US3166006A
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US3252407A
Cited
US3301170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |