US2984587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile softening agents and method of applying them
Assignee: BASF Schweiz AG
•
Filing: 1959-01-20
•
Granted: 1961-05-16
•
Expires: 1979-01-20
Abstract
No abstract record available.
Inventors
- 👤 Matter Erich
- 👤 Albrecht Otto
- 👤 Hiestand Armin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:26
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; D06M13/461; D06M13/325; D06M13/342; D06M13/35; D06M13/47
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
33 words
A PROCESS FOR IMPARTING A SOFT HANDLE AND FEELING TO TEXTILE MATERIAL WHICH COMPRISES IMPREGNATING THE MATERIAL IN AN AQUEOUS BATH CONTAINING THE DI-QUATERNARY AMMONIUM COMPOUND WHICH CORRESPONDS TO THE GENERAL SYMMETRICAL FORMULA
References Cited (Backward Citations)
US2371104A
Cited
DE748543C
Cited
CH210482A
Cited
US2176896A
Cited
US2216406A
Cited
US2310873A
Cited
US2334709A
Cited
US2653898A
Cited
US2569409A
Cited
DE936395C
Cited
US2669582A
Cited
FR1110724A
Cited
US2765337A
Cited
US2832799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |