US3123588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color stable acrylonitrile polymers
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:47
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/42; C08F20/44; C08F2/00; C08F2/12; C08F2/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A WHITE LINEAR POLYMER OF MONOMERIC MATERIAL CONTAINING AT LEAST 85% ACRYLONITRILE HAVING ATTACHED TO THE POLYMER IONIZABLE GROUPS CONSISTING OF -SO3M AND -OSO3M IN WHICH M REPRESENTS ELEMENTS FROM THE GROUP CONSISTING OF H AND THE ALKALI METALS; SAID IONIZABLE GROUPS BEING PRESENT ON SAID POLYMER IN AN AMOUNT EQUAL TO AT LEAST ABOUT 30 MILLIEQUIVALENTS PER KILOGRAM OF POLYMER AND FROM .01 TO 3MILLIEQUIVALENTS PER KILOGRAM OF POLYMER OF THE SAID IONIZABLE GROUPS BEING -OSO3H AND -SO3H.
Claim 2
Dependent Claim
79 words
A WHITE LINEAR POLYMER OF MONOMERIC MATERIAL CONTAINING AT LEAST 85% ACRYLONITRILE HAVING ATTACHED TO THE POLYMER IONIZABLE GROUPS CONSISTING OF -SO3M AND -OSO3M IN WHICH M REPRESENTS ELEMENTS FROM THE GROUP CONSISTING OF H AND THE ALKALI METALS; SAID IONIZABLE GROUPS BEING PRESENT ON SAID POLYMER IN AN AMOUNT EQUAL TO AT LEAST ABOUT 30 MILLIEQUIVALENTS PER KILOGRAM OF POLYMER AND FROM .01 TO 3MILLIEQUIVALENTS PER KILOGRAM OF POLYMER OF THE SAID IONIZABLE GROUPS BEING -OSO3H AND -SO3H.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |