US3363029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amine and ammonium salts of allylic esters of styrene/maleic anhydride polymers as stabilizer in aqueous polymerization processes
Assignee: Sinclair Research Inc
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Filing: 1965-11-24
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Granted: 1968-01-09
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Expires: 1985-11-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Verdol
- 👤 Bob G Gower
- 👤 Henry H Rueter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:58
CPC Classifications
C; C08; C08F; C08F257/00; C08F257/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
IN THE POLYMERIZATION OF AT LEAST TWO ETHYLENICALLY UNSATURATED MONOMERS, EACH CONTAINING A POLYMERIZABLE
Claim 2
Dependent Claim
14 words
IN THE POLYMERIZATION OF AT LEAST TWO ETHYLENICALLY UNSATURATED MONOMERS, EACH CONTAINING A POLYMERIZABLE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |