US2494646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Woven fabric
Assignee: Celanese Corp
•
Filing: 1945-07-27
•
Granted: 1950-01-17
•
Expires: 1965-07-27
Abstract
No abstract record available.
Inventors
- 👤 Crawshaw Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
D; D03; D03D; D03D3/00; D03D1/00; D03D1/0094
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US21481A
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US51436A
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US718499A
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GB122076A
Cited
US1794624A
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GB402965A
Cited
US2207862A
Cited
US2096835A
Cited
US2128764A
Cited
US2355635A
Cited
US2270154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |