US2433097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl acetals plasticized with partial esters of polyhydric alcohols with unsaturated aliphatic acids
Assignee: Monsanto Chemicals Ltd
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Filing: 1944-02-25
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Granted: 1947-12-23
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Expires: 1964-02-25
Abstract
No abstract record available.
Inventors
- 👤 Max O Debacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:03
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2079108A
Cited
GB413718A
Cited
US2160532A
Cited
US2222490A
Cited
US2290180A
Cited
US2381247A
Cited
US2375388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-22 | 1951-06-23 | 1951-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-22 | 1955-06-23 | 1955-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-22 | 1959-06-23 | 1959-12-23 | $7700.00 | Window Closed / Lapsed |