Patent US3133048A successfully refreshed from Google Patents.
US3133048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-insoluble resins of 4(ar-vinylbenzyl)-3-morpholinone
Assignee: Dow Chemical Co
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Filing: 1962-03-05
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Granted: 1964-05-12
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Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 Moore Carl
- 👤 William F Tousignant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:56
CPC Classifications
C; C08; C08L; C08L59/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
24 words
METHOD FOR MAKING A WATER-INSOLUBLE, RESINOUS, POLYMERIC 4-(AR-VINYLBENZYL)-3-MORPHOLINONE BY REACTING SUBSTANTIALLY STOICHIOMETRIC PROPORTIONS OF AN ALKALI METAL SALT OF A 3-MORPHOLINONE HAVING THE FORMULA
References Cited (Backward Citations)
US2600024A
Cited
US2987509A
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 |