US3548028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing non-sticky filamentary material consisting of copolyamide and polyolefin
Assignee: SNIA Viscosa SpA
•
Filing: 1968-02-02
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Granted: 1970-12-15
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Expires: 1988-02-02
Abstract
No abstract record available.
Inventors
- 👤 Yoshio Itabashi
- 👤 Masao Sekii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:32
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/36; C08L; C08L77/00; C08L77/02; C08L77/06; D; D01; D01D; D01D5/00; D01D5/22; D01F; D01F6/00; D01F6/78; D01F6/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3274289A
Cited
FR1386563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |