US3780093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfluoroalkyl compounds
Assignee: Novartis AG
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Filing: 1971-08-17
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Granted: 1973-12-18
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Expires: 1991-08-17
Abstract
Abstract PERFLUOROALKYL COMPOUNDS ARE PROVIDED IN WHICH THE PERFLUOROALKYL RADICAL IS BONDED THROUGH A LINEAR OR CYCLIC ALIPHATIC RADICAL TO THE CARBOXYLIC GROUP OF AN ALIPHATIC UNSATURATED CARBOXYLIC ACID. THESE PRODUCTS AND THEIR POLYMERIZATION PRODUCTS ARE USEFUL FOR FINISHING VARIOUS SUBSTRATES, ESPECIALLY FOR THE PRODUCTION OF ALIPHATIC FINISHES ON PAPER, LEATHER, NON-WOVEN AND TEXTILES.
Inventors
- 👤 H Jaeger
- 👤 P Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:06
CPC Classifications
C; C07; C07D; C07D319/00; C07D319/04; C07D319/08; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/22; C08F20/24; C08F22/00; C08F22/10; C08F22/12; C08F22/18; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277
Claims Analysis
Total Claims: 0
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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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |