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US3499431A
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Cooking range preheat and vent systems
Assignee: GLENWOOD RANGE CO
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Filing: 1967-06-26
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Granted: 1970-03-10
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Expires: 1987-06-26
Abstract
No abstract record available.
Inventors
- 👤 George Mcarthur Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:17
CPC Classifications
F; F24; F24C; F24C14/00; F24C14/02; F24C14/025; F24C15/00; F24C15/20; F24C15/2007; F24C3/00; F24C3/08; F24C3/085; F24C3/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2488388A
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US2586023A
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US2638893A
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US2839044A
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US2743719A
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US3027444A
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US3148674A
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US3364912A
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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) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |