US2496384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion polymerization process for the manufacture of copolymers of homogeneous composition
Assignee: Shell Development Co
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Filing: 1946-07-22
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Granted: 1950-02-07
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Expires: 1966-07-22
Abstract
No abstract record available.
Inventors
- 👤 Nie Willem Leendert Johanne De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:45
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
IN A PROCESS FOR PRODUCTION OF COPOLYMER OF SUBSTANTIALLY HOMOGENEOUS COMPOSITIN WHEREIN A MIXTURE CONTAINING AT LEAST 1% EACH OF MONOMERS OF TWO SUBSTANTIALLY WATER-INSOLUBLE POLYMERIZABLE COMPOUNDS, EACH OF WHICH CONTAINS THE POLYMERIZABLE GROUP
Claim 2
Dependent Claim
34 words
IN A PROCESS FOR PRODUCTION OF COPOLYMER OF SUBSTANTIALLY HOMOGENEOUS COMPOSITIN WHEREIN A MIXTURE CONTAINING AT LEAST 1% EACH OF MONOMERS OF TWO SUBSTANTIALLY WATER-INSOLUBLE POLYMERIZABLE COMPOUNDS, EACH OF WHICH CONTAINS THE POLYMERIZABLE GROUP
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) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |