US3402238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of centrifugally crimping thermoplastic textile filaments
Assignee: Ernest Scragg and Sons Ltd
•
Filing: 1963-10-07
•
Granted: 1968-09-17
•
Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Scragg Frederick
- 👤 Alexander A Chubb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:37
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A METHOD OF PROCESSING THERMOPLASTIC TEXTILE FILAMENTS, COMPRISING THE STEPS OF HEATING THE FILAMENTS, CRIMPING THE FILAMENTS BY URGING THE HEATED FILAMENTS LENGTHWISE AGAINST A SURFACE BY REVOLVING A LENGTH OF THE FILAMENTS ABOUT ONE END OF SAID LENGTH, AND COOLING THE FILAMENTS.
Claim 2
Independent Claim
43 words
A METHOD OF PROCESSING THERMOPLASTIC TEXTILE FILAMENTS, COMPRISING THE STEPS OF HEATING THE FILAMENTS, CRIMPING THE FILAMENTS BY URGING THE HEATED FILAMENTS LENGTHWISE AGAINST A SURFACE BY REVOLVING A LENGTH OF THE FILAMENTS ABOUT ONE END OF SAID LENGTH, AND COOLING THE FILAMENTS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |