US2142007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of artificial silk
Assignee: IG Farbenindustrie AG
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Filing: 1935-09-20
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Granted: 1938-12-27
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Expires: 1955-09-20
Abstract
No abstract record available.
Inventors
- 👤 Schlack Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:28
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/22; D01; D01F; D01F1/00; D01F1/02; D01F1/10; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06P3/00; D06P3/001; D06P3/34; D06P3/40; D06P3/401; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/921; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969
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) | 1941-12-26 | 1942-06-27 | 1942-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-12-26 | 1946-06-27 | 1946-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-12-26 | 1950-06-27 | 1950-12-27 | $7700.00 | Window Closed / Lapsed |