US3217074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing a filament having a fibrous linearly oriented core
Assignee: Individual
•
Filing: 1963-05-02
•
Granted: 1965-11-09
•
Expires: 1983-05-02
Abstract
No abstract record available.
Inventors
- 👤 Gould Charna
- 👤 Gould William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:20
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/229; D01; D01D; D01D11/00; D01F; D01F8/00; D01F8/04; D01F8/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A METHOD OF PRODUCING A SPRINGY SPLIT- AND WEARRESISTANT SMOOTH SURFACED FILAMENT WHICH COMPRISES DRAWING AN EXTRUDED FIBROUS LINEARLY ORIENTED THERMOPLASTIC FILAMENT BETWEEN A PAIR OF LINEARLY SPACED DRAWING MEANS THROUGH A HEATING OVEN HAVING A TEMPERATURE WITHIN THE RANGE OF ABOUT 900*F. TO 1400*F. AND AT A SPEED TO MELT SAID FILAMENT TO A SUBSTANTIAL DEPTH INWARDLY FROM THE SURFACE, AND IMMEDIATELY SUBJECTING SAID FILAMENT IN ITS TRANSITION BETWEEN SAID SPACED DRAWING MEANS TO A QUENCHING COOLANT TO ARREST THE MELTING ACTION AT A POINT INWARDLY SPACED FROM THE SURFACE TO FORM A SOLIDIFIED HOMOGENEOUS SPLIT- AND WEAR-RESISTANT SMOOTH SURFACED CASING OF SUBSTANTIAL DEPTH SURROUNDING A FIBROUS LINEARLY ORIENTED CORE.
Claim 2
Independent Claim
111 words
A METHOD OF PRODUCING A SPRINGY SPLIT- AND WEARRESISTANT SMOOTH SURFACED FILAMENT WHICH COMPRISES DRAWING AN EXTRUDED FIBROUS LINEARLY ORIENTED THERMOPLASTIC FILAMENT BETWEEN A PAIR OF LINEARLY SPACED DRAWING MEANS THROUGH A HEATING OVEN HAVING A TEMPERATURE WITHIN THE RANGE OF ABOUT 900*F. TO 1400*F. AND AT A SPEED TO MELT SAID FILAMENT TO A SUBSTANTIAL DEPTH INWARDLY FROM THE SURFACE, AND IMMEDIATELY SUBJECTING SAID FILAMENT IN ITS TRANSITION BETWEEN SAID SPACED DRAWING MEANS TO A QUENCHING COOLANT TO ARREST THE MELTING ACTION AT A POINT INWARDLY SPACED FROM THE SURFACE TO FORM A SOLIDIFIED HOMOGENEOUS SPLIT- AND WEAR-RESISTANT SMOOTH SURFACED CASING OF SUBSTANTIAL DEPTH SURROUNDING A FIBROUS LINEARLY ORIENTED CORE.
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |