US3297620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion latex containing partial amide of styrene-maleic anhydride copolymer as emulsifier
Assignee: Monsanto Co
•
Filing: 1964-07-20
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Granted: 1967-01-10
•
Expires: 1984-07-20
Abstract
No abstract record available.
Inventors
- 👤 George J Anderson
- 👤 Charles R Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:21
CPC Classifications
C; C08; C08F; C08F291/00; Y; Y10; Y10S; Y10S526/00; Y10S526/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
AN EMULSION POLYMERIZED LATEX CONTAINING AS THE SOLE EMULSIFIER 10-40 WEIGHT PERCENT OF A POLYMER BASED ON THE TOTAL WEIGHT OF EMULSION SOLIDS THEREOF, WHEREIN THE POLYMER HAS A MOLECULAR WEIGHT OF 1000-20,000 AND IS A SALT OF A PARTIAL AMIDE OF A COPOLYMER OF MALEIC ANHYDRIDE AND A VINYLIDENE AROMATIC COMPOUND AND WHICH POLYMER HAS IN ITS STRUCTURE RECURRING GROUPS OF THE FORMULAE:
Claim 2
Dependent Claim
64 words
AN EMULSION POLYMERIZED LATEX CONTAINING AS THE SOLE EMULSIFIER 10-40 WEIGHT PERCENT OF A POLYMER BASED ON THE TOTAL WEIGHT OF EMULSION SOLIDS THEREOF, WHEREIN THE POLYMER HAS A MOLECULAR WEIGHT OF 1000-20,000 AND IS A SALT OF A PARTIAL AMIDE OF A COPOLYMER OF MALEIC ANHYDRIDE AND A VINYLIDENE AROMATIC COMPOUND AND WHICH POLYMER HAS IN ITS STRUCTURE RECURRING GROUPS OF THE FORMULAE:
References Cited (Backward Citations)
US2798062A
Cited
US2977334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |