Patent US2003409A successfully refreshed from Google Patents.
US2003409A
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US
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Sizing and dyeing of textiles
Assignee: Celanese Corp
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Filing: 1933-10-03
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Granted: 1935-06-04
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Expires: 1953-10-03
Abstract
No abstract record available.
Inventors
- 👤 Whitehead William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:21
CPC Classifications
D; D06; D06M; D06M23/00; D06M23/10; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/922; D06P1/926; D06P1/928; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/921
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-06-03 | 1938-12-03 | 1939-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-06-03 | 1942-12-03 | 1943-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-06-03 | 1946-12-03 | 1947-06-04 | $7700.00 | Window Closed / Lapsed |