US2965617A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolymers of vinyl esters with long chain alkyl esters of maleic acid
Assignee: Shawinigan Resins Corp
•
Filing: 1955-12-29
•
Granted: 1960-12-20
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Expires: 1975-12-29
Abstract
No abstract record available.
Inventors
- 👤 Angus N Macdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:12
CPC Classifications
C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F222/00; C08F222/10; C08F222/12; C08F222/16; C08F222/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2168535A
Cited
US2454284A
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US2616851A
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US2637712A
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US2522775A
Cited
US2643245A
Cited
US2643238A
Cited
US2744098A
Cited
US2666746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |