US3351618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization products of carbonamides (containing sulfonamido groups) of alpha, beta-ethylenically unsaturated aliphatic carboxylic acids
Assignee: BASF Schweiz AG
•
Filing: 1965-04-05
•
Granted: 1967-11-07
•
Expires: 1985-04-05
Abstract
No abstract record available.
Inventors
- 👤 Toepfl Rosemarie
- 👤 Maeder Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:12
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; C; C08; C08F; C08F28/00; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/285; D06M15/29; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A POLYMERIZATION PRODUCT FROM (A) 2 TO 100% OF A CARBONAMIDE OF THE FORMULA
Claim 2
Dependent Claim
14 words
A POLYMERIZATION PRODUCT FROM (A) 2 TO 100% OF A CARBONAMIDE OF THE FORMULA
References Cited (Backward Citations)
US2478378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |