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Patent US2433842A successfully refreshed from Google Patents.
US2433842A
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Method of drying rayon thread by high-frequency electric currents
Assignee: Akzo Nobel UK PLC
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Filing: 1944-02-16
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Granted: 1948-01-06
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Expires: 1964-02-16
Abstract
No abstract record available.
Inventors
- 👤 Frank H Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:59
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/001; D; D02; D02J; D02J13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2090352A
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US2204603A
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US2226871A
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US2267985A
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US2263681A
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US2303696A
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US2303983A
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US2325652A
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US2390572A
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US2366347A
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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) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |