Patent US3535800A successfully refreshed from Google Patents.
US2668366A
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Heat processing apparatus
Assignee: YOUNG BROTHERS CO
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Filing: 1949-11-12
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Granted: 1954-02-09
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Expires: 1969-11-12
Abstract
No abstract record available.
Inventors
- 👤 Charles A Barnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:12
CPC Classifications
F; F26; F26B; F26B15/00; F26B15/02; F26B15/08; F26B15/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1980163A
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US1939016A
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US1994220A
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US2406821A
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US2318511A
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US2364080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |