Patent US3133040A successfully refreshed from Google Patents.
US3133040A
Expired / Lapsed
US
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Polyvinyl acetate emulsions with unsaturated esters
Assignee: Hexion Inc
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Filing: 1958-02-20
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Granted: 1964-05-12
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Expires: 1978-02-20
Abstract
No abstract record available.
Inventors
- 👤 Salvatore G Sanfilippo
- 👤 Philip L Gordon
- 👤 Silverstein Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:46
CPC Classifications
C; C08; C08F; C08F263/00; C08F263/02; C08F263/04; C09; C09D; C09D131/00; C09D131/02; C09D131/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2155590A
Cited
US2155591A
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US2611762A
Cited
US2558548A
Cited
GB706577A
Cited
US2840447A
Cited
US2861051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |