US3107412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of staple fibers from waste material
Assignee: Imperial Chemical Industries Ltd
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Filing: 1961-12-29
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Granted: 1963-10-22
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 Hall Antony Philip
- 👤 Gillanders Stephen Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:37
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/06; D01G1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PROCESS FOR THE MANUFACTURE OF STAPLE FIBRES FROM FIBRE WASTE PRODUCED IN THE MANUFACTURE OF COMMERCIALLY AVAILABLE SYNTHETIC LINEAR POLYMER FIBRES, COMPRISING THE STEPS OF: (I) CUTTING FIBRE WASTE MATERIAL TO RANDOM LENGTH: (II) FEEDING THE RANDOM CUT LENGTH MATERIAL SO OBTAINED TO BREAKING AND OPENING PROCESS AND COLLECTING A SILVER SO OBTAINED BY WINDING INTO AN INTERMEDIATE PACKAGE; (III) SUBMITTING THE SILVER OF RANDOMLY CUT FIBRE WASTE AFTER UNWINDING FROM THE INTERMEDIATE PACKAGE TO A PARALLELISING PROCESS UNTIL A SUBSTANTIALLY UNIFORM THICK SILVER OF PARALLELISED CUT FIBRE WASTE IS OBTAINED; (IV) CRIMPING THE SILVER MECHANICALLY, HEAT SETTING THE CRIMPED FIBRE WASTE SILVER; AND (V) CUTTING THE SILVER TO STAPLE FIBRE LENGTH.
Claim 2
Dependent Claim
113 words
A PROCESS FOR THE MANUFACTURE OF STAPLE FIBRES FROM FIBRE WASTE PRODUCED IN THE MANUFACTURE OF COMMERCIALLY AVAILABLE SYNTHETIC LINEAR POLYMER FIBRES, COMPRISING THE STEPS OF: (I) CUTTING FIBRE WASTE MATERIAL TO RANDOM LENGTH: (II) FEEDING THE RANDOM CUT LENGTH MATERIAL SO OBTAINED TO BREAKING AND OPENING PROCESS AND COLLECTING A SILVER SO OBTAINED BY WINDING INTO AN INTERMEDIATE PACKAGE; (III) SUBMITTING THE SILVER OF RANDOMLY CUT FIBRE WASTE AFTER UNWINDING FROM THE INTERMEDIATE PACKAGE TO A PARALLELISING PROCESS UNTIL A SUBSTANTIALLY UNIFORM THICK SILVER OF PARALLELISED CUT FIBRE WASTE IS OBTAINED; (IV) CRIMPING THE SILVER MECHANICALLY, HEAT SETTING THE CRIMPED FIBRE WASTE SILVER; AND (V) CUTTING THE SILVER TO STAPLE FIBRE LENGTH.
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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |