US3416874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polyacrylonitrile-based articles
Assignee: Crylor SA
•
Filing: 1964-10-21
•
Granted: 1968-12-17
•
Expires: 1984-10-21
Abstract
No abstract record available.
Inventors
- 👤 Robin Jean Baptiste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:28
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/167; C03B5/18; C03B5/187; D; D06; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/13; D06M11/155; D06M11/51; D06M11/54; D06M11/55; D06M11/56; D06M11/58; D06M11/63; D06M11/68; D06M11/70; D06M11/71; D06M13/00; D06M13/10; D06M13/12; D06M13/123; D06M13/127; D06M13/322; D06M13/402; D06M13/422; Y; Y10; Y10S; Y10S264/00; Y10S264/19; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3092519A
Cited
US3242000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |