US3763116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfluoroalkyl thioether alcohols esters and polymers
Assignee: Novartis Corp
•
Filing: 1972-10-20
•
Granted: 1973-10-02
•
Expires: 1992-10-20
Abstract
Abstract PERFLUOROALKYL GROUP CONTAINING THIOETHER ALCOHOLS ARE CONVERTED INTO A,B-UNSATURATED MONO-, DI- AND TRIESTERS FROM WHICH POLYMERS ARE DERIVED HAVING SOIL REPELLENT PROPERTIES PARTICULARLY IF APPLIED TO SUBSTRATES SUCH AS TEXITLES, PAPER AND LEATHER.
Inventors
- 👤 E Kleiner
- 👤 M Knelldeclare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:03
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; C; C07; C07C; C07C203/00; C07C203/02; C07C203/04; C07C323/00; C07C327/00; C08; C08F; C08F22/00; C08F22/10; C08F22/12; C08F22/18; C08F28/00; C14; C14C; C14C11/00; C14C11/003
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |