Patent US3190718A successfully refreshed from Google Patents.
US3190718A
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Process of heat treating a tow of polyester filaments while under tension to modify the properties thereof
Assignee: Celanese Corp
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Filing: 1960-04-28
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Granted: 1965-06-22
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Expires: 1980-04-28
Abstract
No abstract record available.
Inventors
- 👤 Werner A P Schoeneberg
- 👤 William D Parkey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:28
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/60; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/53; D06P1/613; D06P1/6138; D06P1/64; D06P1/642; D06P1/645; D06P1/651; D06P1/65106; D06P1/65118; D06P1/65125; D06P1/667; D06P3/00; D06P3/34; D06P3/52; D06P3/54; D06P7/00; D06P7/005; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922; Y10S8/93
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
THE PROCESS WHICH COMPRISES HEAT TREATING UNDER TENSION A TOW OF POLYESTER FILAMENTS CARRYING SUBSTANTIALLY UNIFORMLY ON THE SURFACES THEREOF A MEMBER SELECTED FROM THE GROUP CONSISTING OF A POLYALKYLENE GLYCOL, AN ETHER OF A POLYALKYLENE GLYCOL, AN ESTER OF A POLYALKYLENE GLYCOL, AN ETHER OF AN ALKYLENE GLYCOL, DIACETONE ALCOHOL, DIACETIN, AN ALKANOLAMINE AND A LOWER ALKYL PHOSPHATE.
Claim 2
Dependent Claim
59 words
THE PROCESS WHICH COMPRISES HEAT TREATING UNDER TENSION A TOW OF POLYESTER FILAMENTS CARRYING SUBSTANTIALLY UNIFORMLY ON THE SURFACES THEREOF A MEMBER SELECTED FROM THE GROUP CONSISTING OF A POLYALKYLENE GLYCOL, AN ETHER OF A POLYALKYLENE GLYCOL, AN ESTER OF A POLYALKYLENE GLYCOL, AN ETHER OF AN ALKYLENE GLYCOL, DIACETONE ALCOHOL, DIACETIN, AN ALKANOLAMINE AND A LOWER ALKYL PHOSPHATE.
References Cited (Backward Citations)
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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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |