US3095390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymerisation products of amides of copolymerisable carboxylic acids containing quaternary ammonium groups bound to amide nitrogen
Assignee: BASF Schweiz AG
•
Filing: 1954-10-25
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Granted: 1963-06-25
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Expires: 1974-10-25
Abstract
No abstract record available.
Inventors
- 👤 Maeder Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:47
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/60; C08F36/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A STABLE AQUEOUS CATIONACTIVE DISPERSION COMPRISING: (A) IN FINELY DIVIDED STATE A POLYMERIZATION PRODUCT WHICH CONTAINS COPOLYMERIZED (I) AN AMIDE OF A COPOLYMERIZABLE ALPHATIC CARBOXYLIC ACID OF THE FORMULA
Claim 2
Dependent Claim
29 words
A STABLE AQUEOUS CATIONACTIVE DISPERSION COMPRISING: (A) IN FINELY DIVIDED STATE A POLYMERIZATION PRODUCT WHICH CONTAINS COPOLYMERIZED (I) AN AMIDE OF A COPOLYMERIZABLE ALPHATIC CARBOXYLIC ACID OF THE FORMULA
References Cited (Backward Citations)
US2567836A
Cited
US2649438A
Cited
BE515194A
Cited
US2723968A
Cited
US2662875A
Cited
US3008851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |