Patent US2479226A successfully refreshed from Google Patents.
US2479226A
Expired / Lapsed
US
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Emulsion polymerization of unsaturated organic compounds
Assignee: Hercules Powder Co
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Filing: 1945-10-24
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Granted: 1949-08-16
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Expires: 1965-10-24
Abstract
No abstract record available.
Inventors
- 👤 Richard S George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:50
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F2/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2371230A
Cited
US1992949A
Cited
US2377647A
Cited
US2421627A
Cited
US2388477A
Cited
US2397201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |