Patent US3048382A successfully refreshed from Google Patents.
US3048382A
Expired / Lapsed
US
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Fire tube furnace and method for baking articles
Assignee: Union Carbide Corp
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Filing: 1958-04-17
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Granted: 1962-08-07
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Expires: 1978-04-17
Abstract
No abstract record available.
Inventors
- 👤 Richard L Mansfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:13
CPC Classifications
F; F27; F27B; F27B17/00; F27B17/0016; F27B17/0083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US171811A
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US984287A
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US1120147A
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US1170313A
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US2189624A
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US2495615A
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US2499704A
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US2537670A
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US2598474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |