US2125031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of artificial silk
Assignee: Akzona Inc
•
Filing: 1937-01-25
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Granted: 1938-07-26
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Expires: 1957-01-25
Abstract
No abstract record available.
Inventors
- 👤 Polak James Joseph
- 👤 Johannes G Weeldenburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:25
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; B; B23; B23K; B23K35/00; B23K35/40; B29; B29B; B29B13/00; B29B13/06; B65; B65D; B65D71/00; C08K; C08K5/00; C08K5/16; D; D01; D01F; D01F2/00; D01F2/06; D01F2/08; D01F2/10; D01F6/00; D01F6/02; D01F6/18; F; F26; F26B; F26B21/00; F26B23/00; F26B23/02; H; H01; H01R; H01R4/00; H01R4/10; H01R4/18; H01R4/183; H01R4/184; H01R43/00; H01R43/04; H01R43/058; B29K; B29K2021/00; C08J2333/00; C08J2333/18; C08J2333/20
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) | 1941-07-25 | 1942-01-24 | 1942-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-07-25 | 1946-01-24 | 1946-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-07-25 | 1950-01-24 | 1950-07-26 | $7700.00 | Window Closed / Lapsed |