Patent US2479620A successfully refreshed from Google Patents.
US2479620A
Expired / Lapsed
US
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Safety valve for cookers
Assignee: Manning Maxwell and Moore Inc
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Filing: 1945-11-15
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Granted: 1949-08-23
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Expires: 1965-11-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert J Ingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:14
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/08; A47J27/09; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7876; Y10T137/7877; Y10T137/7878; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7932
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1033136A
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US1328653A
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US1569187A
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US2051100A
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US2107704A
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US2210473A
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US2200903A
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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) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |