Patent US2469827A successfully refreshed from Google Patents.
US2469827A
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Coagulation of emulsion polymers
Assignee: Wingfoot Corp
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Filing: 1945-08-23
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Granted: 1949-05-10
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Expires: 1965-08-23
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:03
CPC Classifications
C; C08; C08F; C08F6/00; C08F6/14; C08F6/22; C08C; C08C1/00; C08C1/14; C08C1/15; Y; Y10; Y10S; Y10S260/00; Y10S260/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2298713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |