Patent US2166560A successfully refreshed from Google Patents.
Patent US2571305A successfully refreshed from Google Patents.
US2571305A
Expired / Lapsed
US
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Device for the treatment or impregnation of rayon and similar textile fibers
Assignee: Individual
•
Filing: 1948-03-10
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Granted: 1951-10-16
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Expires: 1968-03-10
Abstract
No abstract record available.
Inventors
- 👤 Steverlynck Baldewijn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:10
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/14; B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; D; D01; D01D; D01D10/00; D01D10/04; D01D10/0418; D06; D06B; D06B23/00; D06B23/04; D06B23/042; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G1/045; F02G1/05; B65H2701/00; B65H2701/30; B65H2701/31; B65H2701/50; B65H2701/53; B65H2701/534
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US942166A
Cited
FR421492A
Cited
FR438504A
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FR461251A
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FR759305A
Cited
US2004419A
Cited
US2184477A
Cited
US2065526A
Cited
US2086100A
Cited
US2153420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |