US2434913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous products
Assignee: Celanese Corp
•
Filing: 1944-02-04
•
Granted: 1948-01-27
•
Expires: 1964-02-04
Abstract
No abstract record available.
Inventors
- 👤 Finlayson Donald
- 👤 Perry Richard Gilbert
- 👤 Bonard Claude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:16
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/05; D06M15/07; D06M15/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1918294A
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US1997857A
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US2177627A
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US2108804A
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US2087013A
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US2098535A
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US2098542A
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US2245499A
Cited
US2205210A
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US2351174A
Cited
US2330998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-26 | 1951-07-28 | 1952-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-26 | 1955-07-28 | 1956-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-26 | 1959-07-28 | 1960-01-27 | $7700.00 | Window Closed / Lapsed |