Patent US3340221A successfully refreshed from Google Patents.
US3340221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers containing ethylenically unsaturated derivatives of orthohydroxy aromatics as reactive dye sites
Assignee: Ingredion Inc
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Filing: 1962-12-12
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Granted: 1967-09-05
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Expires: 1982-12-12
Abstract
No abstract record available.
Inventors
- 👤 Albert I Goldberg
- 👤 Skoultchi Martin
- 👤 Fertig Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:11
CPC Classifications
C; C08; C08F; C08F8/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A METHOD FOR THE COLORATION OF A POLYMER OF AT LEAST ONE ETHYLENICALLY UNSATURATED MONOMER TOGETHER WITH AT LEAST ABOUT 0.1%, BY WEIGHT, OF AN ETHYLENICALLY UNSATURATED DERIVATIVE OF AN ORTHO-HYDROXY AROMATIC COMPOUND WHICH CORRESPONDS TO THE FORMULA:
Claim 2
Independent Claim
38 words
A METHOD FOR THE COLORATION OF A POLYMER OF AT LEAST ONE ETHYLENICALLY UNSATURATED MONOMER TOGETHER WITH AT LEAST ABOUT 0.1%, BY WEIGHT, OF AN ETHYLENICALLY UNSATURATED DERIVATIVE OF AN ORTHO-HYDROXY AROMATIC COMPOUND WHICH CORRESPONDS TO THE FORMULA:
References Cited (Backward Citations)
US3011860A
Cited
US3180851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |