Patent US2328602A successfully refreshed from Google Patents.
US2473005A
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Method and catalysts for polymerizing vinyl and vinylidene compounds
Assignee: Dow Chemical Co
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Filing: 1943-08-02
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Granted: 1949-06-14
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Expires: 1963-08-02
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Britton
- 👤 Robert C Dosser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:31
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06; C08F4/00; C08F4/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1935733A
Cited
US2100900A
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US2171765A
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US2120933A
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US2109595A
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US2259513A
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US2356767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |