US4267093A
Expired / Lapsed
US
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Aqueous suspension of inorganic oxidic material
Assignee: Dynamit Nobel AG
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Filing: 1979-07-23
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Granted: 1981-05-12
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Expires: 1999-07-23
Abstract
Abstract Aqueous filler suspension composed of inorganic oxide material and a dispersing agent, characterized in that it contains as dispersing agent an aqueous solution of maleic acid-vinyl alkoxysilane copolymer.
Inventors
- 👤 Horst Hanisch
- 👤 Karl-Martin Rodder
- 👤 Robert Buning
- 👤 Hans-Jurgen Hass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:57
CPC Classifications
C; C09; C09D; C09D17/00; C09D17/004; C09B; C09B67/00; C09B67/0071; C09B67/0084; C09B67/0085; D; D21; D21H; D21H19/00; D21H19/36; D21H19/38; D21H19/385; D21H19/40; D21H19/44; D21H19/56; D21H19/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
Aqueous filler suspension composed of inorganic oxide material and a dispersing agent, characterized in that it contains as a dispersing agent an aqueous solution of maleic acid-vinyl alkoxysilane copolymer.
Claim 2
Dependent Claim
29 words
Aqueous filler suspension composed of inorganic oxide material and a dispersing agent, characterized in that it contains as a dispersing agent an aqueous solution of maleic acid-vinyl alkoxysilane copolymer.
References Cited (Backward Citations)
US3560589A
Cited
US4097436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-11 | 1984-11-10 | 1985-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-11 | 1988-11-10 | 1989-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-11 | 1992-11-10 | 1993-05-12 | $7700.00 | Window Closed / Lapsed |