US3410941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation and spinning of nitric acid polyacrylonitrile solutions
Assignee: Lonza AG
•
Filing: 1967-03-30
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Granted: 1968-11-12
•
Expires: 1987-03-30
Abstract
No abstract record available.
Inventors
- 👤 Dagon Roland
- 👤 Nordmann Camille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:48
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/18; C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F20/00; C08F20/02; C08F20/42; C08F20/44; D01F6/28; D01F6/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2612490A
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US3073669A
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US3202641A
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US3080209A
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BE628520A
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US3287304A
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US3147322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |