US2914510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain novel amphoteric polyelectrolytes
Assignee: MOUSANTO CHEMICAL Co
•
Filing: 1955-11-16
•
Granted: 1959-11-24
•
Expires: 1975-11-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Leo L Contois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:32
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08F2800/00; C08F2800/10; C08F2800/20; C08F2810/00; C08F2810/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A WATER SOLUBLE, ESSENTIALLY LINEAR POLYMER OF AT LEAST ONE CARBOXYL GROUP-CONTAINING ALPHA, BETA-ETHYLENICALLY UNSATURATED MONOMER, SAID POLYMER HAVING CHEMICALLY BONDED TO CARBON ATOMS OF THE POLYMER CHAIN BOTH CARBOXYL GROUPS OF SAID MONOMER OF THE FORMULA:
Claim 2
Dependent Claim
37 words
A WATER SOLUBLE, ESSENTIALLY LINEAR POLYMER OF AT LEAST ONE CARBOXYL GROUP-CONTAINING ALPHA, BETA-ETHYLENICALLY UNSATURATED MONOMER, SAID POLYMER HAVING CHEMICALLY BONDED TO CARBON ATOMS OF THE POLYMER CHAIN BOTH CARBOXYL GROUPS OF SAID MONOMER OF THE FORMULA:
References Cited (Backward Citations)
US2451370A
Cited
US2764570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |