US2433656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispersion of rubber in polar organic liquid media
Assignee: DEWEV AND ALMY CHEMICAL Co
•
Filing: 1939-05-20
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Granted: 1947-12-30
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Expires: 1959-05-20
Abstract
No abstract record available.
Inventors
- 👤 Charles H Egan
- 👤 Arthur J Leydon
- 👤 Joseph P Fahey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:44
CPC Classifications
C; C08; C08L; C08L7/00; C08K; C08K5/00; C08K5/04; C08K5/05; C08L89/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1392849A
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US1793983A
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GB239048A
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US1589330A
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US1652926A
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US1906437A
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US1938011A
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US1916421A
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US2047977A
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GB444375A
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US2082278A
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US2265777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |