Patent US2445086A successfully refreshed from Google Patents.
US2445086A
Expired / Lapsed
US
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Ceramic heating plate construction
Assignee: CHICAGO ELECTRIC MANUFACTURING Co
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Filing: 1944-07-13
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Granted: 1948-07-13
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Expires: 1964-07-13
Abstract
No abstract record available.
Inventors
- 👤 Rodwick Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:10
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/68; H05B3/74; H05B3/748
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1700087A
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US1789269A
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US1938674A
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US1881241A
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US2007111A
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US2136763A
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US2179934A
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US2152126A
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US2334222A
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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) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |