US2417034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butadiene emulsion polymerization in the presence of water soluble complex metal cyanides
Assignee: EIDP Inc
•
Filing: 1942-05-30
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Granted: 1947-03-04
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Expires: 1962-05-30
Abstract
No abstract record available.
Inventors
- 👤 Mortimer A Youker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:18
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C08F20/14; C08F36/14; C08F36/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2234076A
Cited
US2264173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-03 | 1950-09-02 | 1951-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-03 | 1954-09-02 | 1955-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-03 | 1958-09-02 | 1959-03-04 | $7700.00 | Window Closed / Lapsed |