US3350338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylic amide polymers having improved water dispersibility
Assignee: Dow Chemical Co
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Filing: 1964-09-08
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Granted: 1967-10-31
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Expires: 1984-09-08
Abstract
No abstract record available.
Inventors
- 👤 Albert B Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:54
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5227; C08; C08K; C08K5/00; C08K5/04; C08K5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A COMPOSITION OF MATTER COMPRISING A FINELY DIVIDED, SOLID ACRYLIC AMIDE POLYMER CHARACTERIZED BY WATER SOLUBILITY AND A HIGH MOLECULAR WEIGHT, HAVING A UNIFORM COATING OF A SURFACE TREATING REAGENT SELECTED FROM THE GROUP CONSISTING OF MONOALKYL ETHERS FO DIETHYLENE GLYCOL WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO 4 CARBONS, DIETHYLENE GYLCOL MONOMETHYL ETHER ACETATE, AND 2-ETHYLHEXANE-DIOL-1,3.
Claim 2
Dependent Claim
58 words
A COMPOSITION OF MATTER COMPRISING A FINELY DIVIDED, SOLID ACRYLIC AMIDE POLYMER CHARACTERIZED BY WATER SOLUBILITY AND A HIGH MOLECULAR WEIGHT, HAVING A UNIFORM COATING OF A SURFACE TREATING REAGENT SELECTED FROM THE GROUP CONSISTING OF MONOALKYL ETHERS FO DIETHYLENE GLYCOL WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO 4 CARBONS, DIETHYLENE GYLCOL MONOMETHYL ETHER ACETATE, AND 2-ETHYLHEXANE-DIOL-1,3.
References Cited (Backward Citations)
US2751368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |