Patent US2963276A successfully refreshed from Google Patents.
US2963276A
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Finned heating unit with guide rails
Assignee: EMBASSY STEEL PRODUCTS Inc
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Filing: 1959-09-28
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Granted: 1960-12-06
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Expires: 1979-09-28
Abstract
No abstract record available.
Inventors
- 👤 Elliot S Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:23
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/02; F24D19/04; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; Y; Y10; Y10S; Y10S165/00; Y10S165/051; Y10S165/052; Y10S165/067
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1767605A
Cited
US1823275A
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US2200527A
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US2410140A
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US2584239A
Cited
US2696368A
Cited
US2876631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |