US3649535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of finish composition for synthetic fibers
Assignee: Henkel Corp
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Filing: 1970-04-17
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Granted: 1972-03-14
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Expires: 1990-04-17
Abstract
Abstract FINISH COMPOSITIONS FOR IMPARTING ANTI-STATIC AND LUBRICATING PROPERTIES TO SYNTHETIC FIBERS COMPRISING (A) AN AMINE SALT OF A CARBOXYLIC ACID ESTER OF AN A-SULFONATED FATTY ACID AND (B) A HIGH MOLECULAR WEIGHT FATTY ACID ESTER AND METHOD OF TREATING SYNTHETIC FIBERS.
Inventors
- 👤 John E Clark
- 👤 Michael R Cusano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:55
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/53; D06M13/00; D06M13/244; D06M13/248; D06M7/00; D06M2200/00; D06M2200/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2931; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
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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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |