US3236672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Durable water and oil repellency
Assignee: Arkansas Co Inc
•
Filing: 1962-02-12
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Granted: 1966-02-22
•
Expires: 1982-02-12
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel C Shane
- 👤 Herman G Weiland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:40
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/487; D06M13/48; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
AN OIL REPELLENT AND WATER REPELLENT TREATING BATH FOR TEXTILE MATERIALS CONSISTING ESSENTIALLY OF A DISPERSION FROM 2 TO 5% OF A FLUOROCARBON AND 2 TO 5% OF AN ALKYLENE IMINE COMPOUND, SAID IMINE BEING SELECTED FROM THE GROUP CONSISTING OF ETHYLENE IMINE AND PROPYLENE IMINE AND SAID FLUROROCARBON BEING SELECTED FROM THE GROUP CONSISTING OF ACRYLATE ESTERS OF PERFLUORO ALKYL COMPOUNDS, THE PROPORTION OF IMINE COMPOUND TO FLUOROCARBON COMPOUND RANGING FROM EQUAL PARTS BY WEIGHT TO 1.5 PARTS BY WEIGHT OF THE FORMER AND 3 PARTS BY WEIGHT OF THE LATTER.
References Cited (Backward Citations)
US3061473A
Cited
US3034925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |