Patent US2570808A successfully refreshed from Google Patents.
US2570808A
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US
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Low-temperature drying apparatus
Assignee: Individual
•
Filing: 1947-12-12
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Granted: 1951-10-09
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Expires: 1967-12-12
Abstract
No abstract record available.
Inventors
- 👤 William H Hermes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:16
CPC Classifications
G; G03; G03D; G03D15/00; G03D15/02; G03D15/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1119011A
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US1837797A
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US1837798A
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US1986863A
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US2154136A
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US2257164A
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US2286961A
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US2291029A
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US2418239A
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US2369511A
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US2438120A
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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) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |