US2473801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsions of polymerizable compositions
Assignee: Wyeth Holdings LLC
•
Filing: 1939-04-01
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Granted: 1949-06-21
•
Expires: 1959-04-01
Abstract
No abstract record available.
Inventors
- 👤 Edward L Kropa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:27
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/12; D06N3/121; B; B25; B25B; B25B13/00; B25B13/48; B25B13/50; B25B13/5008; B25B13/5016; B25B13/5025; B25B13/5041; B25B13/5058; C; C08; C08F; C08F283/00; C08F283/01; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D167/00; C09D167/06; C09D167/08; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/227; D06M15/233; D06M15/263; D06M15/267; D06M15/37; D06M15/507; D06M15/51
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |