Patent US3256180A successfully refreshed from Google Patents.
US3256180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabric softener compositions
Assignee: Arthur D Little Inc
•
Filing: 1963-07-23
•
Granted: 1966-06-14
•
Expires: 1983-07-23
Abstract
No abstract record available.
Inventors
- 👤 Walter F Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:33
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/432; C; C11; C11D; C11D1/00; C11D1/38; C11D1/62; C11D3/00; C11D3/0005; C11D3/001; D06M13/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PROCESS OF PREPARING A STABLE SOLID WATER-DISPERSIBLE COMPOSITION USEFUL FOR TREATING FABRICS TO IMPROVE THE SOFTNESS CHARACTERISTICS THEREOF WHICH COMPRISES REACTING AT SUBSTANTIALLY AMBIENT TEMPERATURES IN THE PRESENCE OF WATER A MAJOR AMOUNT OF UREA RANGING FROM ABOUT 50 TO 90 PERCENT BY WEIGHT OF THE COMPOSITION AND A CATONIC NITROGEN-CONTAINING COMPOUND CONTAINING ONE TO TWO STRAIGHT-CHAIN ORGANIC RADICALS CONTAINING FROM 8 TO 22 CARBON ATOMS AND HAVING FABRIC SOFTENING PROPERTIES, THE AMOUNT OF WATER PRESENT IN THE REACTION MIXTURE CORRESPONDING TGO FROM ABOUT 2 TO ABOUT 15 PERCENT BY WEIGHT OF THE COMPOSITION.
Claim 2
Dependent Claim
95 words
A PROCESS OF PREPARING A STABLE SOLID WATER-DISPERSIBLE COMPOSITION USEFUL FOR TREATING FABRICS TO IMPROVE THE SOFTNESS CHARACTERISTICS THEREOF WHICH COMPRISES REACTING AT SUBSTANTIALLY AMBIENT TEMPERATURES IN THE PRESENCE OF WATER A MAJOR AMOUNT OF UREA RANGING FROM ABOUT 50 TO 90 PERCENT BY WEIGHT OF THE COMPOSITION AND A CATONIC NITROGEN-CONTAINING COMPOUND CONTAINING ONE TO TWO STRAIGHT-CHAIN ORGANIC RADICALS CONTAINING FROM 8 TO 22 CARBON ATOMS AND HAVING FABRIC SOFTENING PROPERTIES, THE AMOUNT OF WATER PRESENT IN THE REACTION MIXTURE CORRESPONDING TGO FROM ABOUT 2 TO ABOUT 15 PERCENT BY WEIGHT OF THE COMPOSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |