Patent US2695922A successfully refreshed from Google Patents.
US2695922A
Expired / Lapsed
US
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Carbon depositing furnace
Assignee: Individual
•
Filing: 1953-08-14
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Granted: 1954-11-30
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Expires: 1973-08-14
Abstract
No abstract record available.
Inventors
- 👤 Matejka Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:56
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/22; C23C16/26; C23C16/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US749460A
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US700808A
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US708898A
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US1220391A
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US1364273A
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US1528324A
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US1872297A
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US1941009A
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US1969478A
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US2337679A
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US2527747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |