US2168535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile material and a process of preparing it
Assignee: IG Farbenindustrie AG
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Filing: 1938-11-12
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Granted: 1939-08-08
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Expires: 1958-11-12
Abstract
No abstract record available.
Inventors
- 👤 Nuesslein Josef
- 👤 Finck Georg Von
- 👤 Stark Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:40
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; D06M13/463; D06M13/02; D06M13/395; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/37; D06M15/39; D06M15/423; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2049; Y10T442/2057; Y10T442/2164; Y10T442/2197; Y10T442/2221; Y10T442/2246
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) | 1942-08-07 | 1943-02-06 | 1943-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-08-07 | 1947-02-06 | 1947-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-08-07 | 1951-02-06 | 1951-08-08 | $7700.00 | Window Closed / Lapsed |