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US3576019A
Expired / Lapsed
US
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Fluorocarbon oil-repellency agents
Assignee: Honeywell International Inc
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Filing: 1968-08-01
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Granted: 1971-04-20
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Expires: 1988-08-01
Abstract
Abstract FLUORINATED AMIDE OIL-REPELLENCY AGENTS FOR FIBROUS MATERIALS AS TEXTILES AND PAPER HAVE THE STRUCTURAL FORMULA R5-CO-NH-(CXH2X-N(-Z''))Y-CXH2X-NH-Z WHEREIN RF IS A FLUORINE-CONTAINING ALKYL RADICAL HAVING A TERMINAL FLUOROISOALKOXYFLUOROALKYL GROUP; X A AND Y ARE INTEGERS FROM 2 TO 6 AND 1 TO 4, RESPECTIVELY; Z IS H, ALKYL, HYDROXYALKYL OR AN ACYL RADICAL OF THE FORMULA -CORF WHEREIN RF IS A DESCRIBED ABOVE; AND Z'' IS H, ALKYL, HYDROXYALKYL, THE ABOVE-DESCRIBED ACYL RADICAL OR A RADICAL OF THE FORMUAL -CXH2XNHZ WHEREIN Z IS AS DESCRIBED ABOVE.
Inventors
- 👤 Richard F Sweeney
- 👤 Alson K Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:32
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/408; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |