US3595886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel fluorocarbon derivatives
Assignee: Honeywell International Inc
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Filing: 1969-01-06
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Granted: 1971-07-27
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Expires: 1989-01-06
Abstract
Abstract POLYFLUOROCARBON COMPOUNDS PREPARED BY REACTING A PERFLUOROALKYL POLYAMIDE HAVING FROM 3-17 PERFLUORINATED CARBON ATOMS WITH A VINYL SULFONE. THE COMPOUNDS ARE USEFUL AS OIL AND WATER REPELLENCY AGENTS FOR TEXTILES.
Inventors
- 👤 Richard F Sweeney
- 👤 Koei-Liang Liauw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:09
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/405; D06M13/408; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T442/00; Y10T442/20; Y10T442/2262; Y10T442/227
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |