US3077006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of staple fibers
Assignee: EIDP Inc
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Filing: 1961-10-30
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Granted: 1963-02-12
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Expires: 1981-10-30
Abstract
No abstract record available.
Inventors
- 👤 Salim M Ibrahim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:43
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/328; D01; D01G; D01G1/00; D01G1/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
99 words
IN A METHOD OF CONVERTING CONTINUOUS ELASTIC FILAMENTS AND INELASTIC FILAMENTS INTO A SLIVER OF INTERMINGLED STAPLE FIBERS, THE PRELIMINARY STEPS COMPRISING FORMING A PLURALITY OF SEPARATED FLAT SHEETS OF CONTINUOUS ELASTIC FILAMENTS AND INELASTIC FILAMENTS, TENSIONING SAID SHEETS OF ELASTIC FILAMENTS TO EXTEND SAID FILAMENTS A PREDETERMINED AMOUNT BEYOND THEIR NORMAL RELAXED LENGTH, COMBINING SAID SHEETS OF ELASTIC AND INELASTIC FILAMENTS IN LAYERED RELATIONSHIP TO FORM A COMPOSITE WEB WHEREIN SAID TENSIONED ELASTIC FILAMENTS LIE BETWEEN SAID SHEETS OF INELASTIC FILAMENTS, AND THEREAFTER FEEDING SAID COMPOSITE WEB TO FRACTURING MEANS WHEREBY SAID FILAMENTS ARE CUT TO STAPLE LENGTHS.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |