Patent US3553305A successfully refreshed from Google Patents.
US3553305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melt-spinning process
Assignee: Individual
•
Filing: 1968-10-16
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Granted: 1971-01-05
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Expires: 1988-10-16
Abstract
Abstract THIS INVENTION PROVIDES A HIGH-SPEED, MELT-SPINNING PROCESS FOR PRODUCING TEXTILE FIBER HAVING AN IMPROVED RESPONSE TO FALSE-TWIST TEXTURING.
Inventors
- 👤 Tin Yam Au
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:16
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/58; D01F6/60
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |