US3354084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous gel of water-swellable acrylic polymer and non-ionic filler
Assignee: Dow Chemical Co
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Filing: 1964-06-24
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Granted: 1967-11-21
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Expires: 1984-06-24
Abstract
No abstract record available.
Inventors
- 👤 Melvin F Katzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:28
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; A; A62; A62D; A62D1/00; A62D1/0064; B; B01; B01J; B01J19/00; B01J19/06; C08K; C08K3/00; C08K3/01; C08K3/013; C08J2333/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A GELLED AQUEOUS DISPERSION COMPRISING, IN ADMIXTURE, WATER AND FROM ABOUT 0.05 UP TO ABOUT 2 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF WATER, OF AN ADMIXTURE OF ONE PART BY WEIGHT OF A PARTICULATE, WATER-SWELLABLE ACRYLIC POLYMER AND FROM ABOUT 0.1 TO ABOUT 2 PARTS BY WEIGHT OF A FINELY DIVIDED, ESSENTIALLY NON-IONIC SOLID INSOLUBLE N WATER AND OPAQUE TO LIGHT.
Claim 2
Dependent Claim
63 words
A GELLED AQUEOUS DISPERSION COMPRISING, IN ADMIXTURE, WATER AND FROM ABOUT 0.05 UP TO ABOUT 2 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF WATER, OF AN ADMIXTURE OF ONE PART BY WEIGHT OF A PARTICULATE, WATER-SWELLABLE ACRYLIC POLYMER AND FROM ABOUT 0.1 TO ABOUT 2 PARTS BY WEIGHT OF A FINELY DIVIDED, ESSENTIALLY NON-IONIC SOLID INSOLUBLE N WATER AND OPAQUE TO LIGHT.
References Cited (Backward Citations)
US2801984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |