US3448186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinning process with contemporaneous stretching of synthetic fibres
Assignee: SNIA Viscosa SpA
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Filing: 1964-04-13
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Granted: 1969-06-03
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Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Domenico Nicita
- 👤 Cesano Maderno
- 👤 Paolo Parmeggiani
- 👤 Pierluigi Perazzoni
- 👤 Piero Giacobone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:22
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/08; D01D5/084; D01F; D01F6/00; D01F6/58; D01F6/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |