US3121700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soluble nitrogen-containing derivatives of unsaturated aldehyde polymers, their preparation and use
Assignee: Shell USA Inc
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Filing: 1960-05-20
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Granted: 1964-02-18
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Expires: 1980-05-20
Abstract
No abstract record available.
Inventors
- 👤 Bergman Elliot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:11
CPC Classifications
C; C08; C08G; C08G2/00; C08G2/18; C08G2/20; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
29 words
A NITROGEN-CONTAINING HIGH MOLECULAR WEIGHT POLYMERIC PRODUCT DERIVED FROM AN ACETONE-INSOLUBLE ADDITION POLYMER OF ACROLEIN, SAID NITROGEN-CONTAINING POLYMER HAVING A PLURALITY OF STRUCTURAL UNITS OF THE GROUP CONSISTING OF
Claim 2
Dependent Claim
29 words
A NITROGEN-CONTAINING HIGH MOLECULAR WEIGHT POLYMERIC PRODUCT DERIVED FROM AN ACETONE-INSOLUBLE ADDITION POLYMER OF ACROLEIN, SAID NITROGEN-CONTAINING POLYMER HAVING A PLURALITY OF STRUCTURAL UNITS OF THE GROUP CONSISTING OF
Claim 3
Dependent Claim
31 words
A NITROGEN-CONTAINING DERIVATIVE OF AN ACTONE INSOLUBLE HIGH MOLECULAR WEIGHT ADDITION POLYMER OF AN ALPHA, BETA-ETHYLENICALLAAY UNSATURATED ALDEHYDE, SAID DERIVATIVE HAVING A PLURALITY OF STRUCTURAL UNITS OF THE GROUP CONSISTING OF
Claim 4
Dependent Claim
31 words
A NITROGEN-CONTAINING DERIVATIVE OF AN ACTONE INSOLUBLE HIGH MOLECULAR WEIGHT ADDITION POLYMER OF AN ALPHA, BETA-ETHYLENICALLAAY UNSATURATED ALDEHYDE, SAID DERIVATIVE HAVING A PLURALITY OF STRUCTURAL UNITS OF THE GROUP CONSISTING OF
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-17 | 1967-08-19 | 1968-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-17 | 1971-08-19 | 1972-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-17 | 1975-08-19 | 1976-02-18 | $7700.00 | Window Closed / Lapsed |