Patent US20080004707A1 successfully refreshed from Google Patents.
US2612485A
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Aqueous dispersions containing a water-soluble sulfonated polystyrene
Assignee: Monsanto Chemicals Ltd
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Filing: 1949-08-11
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Granted: 1952-09-30
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Expires: 1969-08-11
Abstract
No abstract record available.
Inventors
- 👤 Baer Massimo
- 👤 Reid G Fordyce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:02
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L25/00; C08L25/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
AN AQUEOUS DISPERSION CONTAINING 100 PARTS OF AN AQUEOUS EMULSION OF AN ORGANIC RESIN TAKEN FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND POLYSTYRENE AND 5 TO 20 PARTS OF THE SODIUM SALT OF A COMPLETELY WATER-SOLUBLE SULFONATED POLYSTYRENE.
Claim 2
Dependent Claim
39 words
AN AQUEOUS DISPERSION CONTAINING 100 PARTS OF AN AQUEOUS EMULSION OF AN ORGANIC RESIN TAKEN FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND POLYSTYRENE AND 5 TO 20 PARTS OF THE SODIUM SALT OF A COMPLETELY WATER-SOLUBLE SULFONATED POLYSTYRENE.
References Cited (Backward Citations)
US2533211A
Cited
US2533210A
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DE580366C
Cited
US2031929A
Cited
US2238956A
Cited
US2283236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |