Patent FR1102758A successfully refreshed from Google Patents.
US3103407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of drawing melt spun polyester yarns
Assignee: —
•
Filing: —
•
Granted: 1963-09-10
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Expires: 1980-09-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:02
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN A PROCESS FOR PRODUCING DRAWN MELT SPUN POLYESTER YARN OF A DRAWN DENIER BETWEEN 20 AND 2000 AND TENACITY GREATER THAN 6 GRAMS PER DENIER WHICH PROCESS INCLUDES DRAWING THE YARN AROUND A SET OF FEED ROLLS AND A SET OF DRAW ROLLS, THE IMPROVEMENT COMPRISING HEATING AT LEAST ONE FEED ROLL TO BETWEEN 60*C. AND 90*C., PROVIDING A HEATING ZONE OF BETWEEN 160*C. AND 200*C.
Claim 2
Dependent Claim
67 words
IN A PROCESS FOR PRODUCING DRAWN MELT SPUN POLYESTER YARN OF A DRAWN DENIER BETWEEN 20 AND 2000 AND TENACITY GREATER THAN 6 GRAMS PER DENIER WHICH PROCESS INCLUDES DRAWING THE YARN AROUND A SET OF FEED ROLLS AND A SET OF DRAW ROLLS, THE IMPROVEMENT COMPRISING HEATING AT LEAST ONE FEED ROLL TO BETWEEN 60*C. AND 90*C., PROVIDING A HEATING ZONE OF BETWEEN 160*C. AND 200*C.
References Cited (Backward Citations)
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US2596128A
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US2778058A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |