US3018608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of lowshrinkage polyethylene terephthalate threads
Assignee: Glanzstoff AG
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Filing: 1958-05-05
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Granted: 1962-01-30
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Expires: 1978-05-05
Abstract
No abstract record available.
Inventors
- 👤 Kleekamm Fritz
- 👤 Siggel Erhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:34
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/229; D01; D01F; D01F6/00; D01F6/58; D01F6/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
IN THE PROCESSING OF POLYETHYLENE TEREPHTHALATE THREADS FOR SUBSEQUENT TWISTING ON A RING-TWIST DEVICE, STRECTING POLYETHYLENE TEREPHTHALATE THREAD RUNNING AT HIGH LINEAR VELOCITY OVER A STATIONARY SURFACE HEATED TO ABOUT 80-135*C., AND PASSING THE STRETCHED THREAD OVER A SECOND STATIONARY SURFACE HEATED TO ABOUT 180-210*C. AT A LINEAR VELOCITY ABOUT 5-10% LESS THAN THE AFORESAID LINEAR VELOCITY TO PARTIALLY RELAX THE TENSION IN SAID THREAD.
References Cited (Backward Citations)
DE628569C
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US2208497A
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US2455173A
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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) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |