US3380970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salts of certain nitrogen-containing polymers with sulfodicarboxylates and hydrocarbon compositions containing the same
Assignee: Shell USA Inc
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Filing: 1965-04-20
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Granted: 1968-04-30
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Expires: 1985-04-20
Abstract
No abstract record available.
Inventors
- 👤 Johan L Van Der Minne
- 👤 Pieter H J Hermanie
- 👤 Cornelis Douwes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:11
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; B; B65; B65D; B65D90/00; B65D90/22; B65D90/46; C08; C08F; C08F8/00; C08F8/18; C08F8/44; C08L; C08L79/00; C08L79/02; C08F2800/00; C08F2800/20; C08F2810/00; C08F2810/50; C10L1/18; C10L1/188; C10L1/189; C10L1/22; C10L1/221; C10L1/228; C10L1/2283; C10L1/234; C10L1/236; C10L1/2366; C10L1/2368; C10L1/24; C10L1/2431; C10L1/2437
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AS A NEW COMPOSITION OF MATTER, A SALT OF A DIESTER OF A C6-18 ALIPHATIC MONOHYDRIC ALCOHOL AND A C4-10 ALIPHATIC SULFACARBOXYLIC ACID WITH A BASIC NITROGEN-CONTAINING POLYMER OF THE GROUP CONSISTING OF POLY (C2-5 ALKYLENE IMINES), POLY (VINYL PYRIDINES) POLY (ESTERS OF AMINO ALCOHOLS AND AN ACRYLIC ACID) AND COPOLYMERS OF VINYL PYRIDINES WITH AN ACRYLIC ACID ESTER OF AT LEAST ONE C10-24 ALIPHATIC MONOHYDRIC ALCOHOL, AT LEAST 50% OF THE BASIC NITROGEN RADICALS OF THE POLYMER BEING IN SALT FORM WITH THE ESTER OF SULFODICARBOXYLIC ACID.
Claim 2
Dependent Claim
88 words
AS A NEW COMPOSITION OF MATTER, A SALT OF A DIESTER OF A C6-18 ALIPHATIC MONOHYDRIC ALCOHOL AND A C4-10 ALIPHATIC SULFACARBOXYLIC ACID WITH A BASIC NITROGEN-CONTAINING POLYMER OF THE GROUP CONSISTING OF POLY (C2-5 ALKYLENE IMINES), POLY (VINYL PYRIDINES) POLY (ESTERS OF AMINO ALCOHOLS AND AN ACRYLIC ACID) AND COPOLYMERS OF VINYL PYRIDINES WITH AN ACRYLIC ACID ESTER OF AT LEAST ONE C10-24 ALIPHATIC MONOHYDRIC ALCOHOL, AT LEAST 50% OF THE BASIC NITROGEN RADICALS OF THE POLYMER BEING IN SALT FORM WITH THE ESTER OF SULFODICARBOXYLIC ACID.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |