Patent US2633908A successfully refreshed from Google Patents.
US2633908A
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Assignee: Individual
•
Filing: 1947-01-24
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Granted: 1953-04-07
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Expires: 1967-01-24
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Brierly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:34
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/40; F23D11/406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2105546A
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US2340389A
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US2334314A
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US2380463A
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US2411048A
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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) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |