US2082814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making a substitute for wool from viscose
Assignee: IG Farbenindustrie AG
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Filing: 1935-11-29
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Granted: 1937-06-08
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Expires: 1955-11-29
Abstract
No abstract record available.
Inventors
- 👤 Zetzsche Walther
- 👤 Faber Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:19
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06
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) | 1940-06-07 | 1940-12-07 | 1941-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-06-07 | 1944-12-07 | 1945-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-06-07 | 1948-12-07 | 1949-06-08 | $7700.00 | Window Closed / Lapsed |