Patent US3576003A successfully refreshed from Google Patents.
US3576003A
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Aryl hetero acrylamides
Assignee: GAF Corp
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Filing: 1967-11-15
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Granted: 1971-04-20
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Expires: 1987-11-15
Abstract
Abstract SUBSTANTIALLY COLORLESS COMPOUNDS WHICH EXHIBIT A PROMINENT ABSORPTION PEAK BETWEEN 250 A. AND 400 A. AND WHICH ARE STABILIZERS FOR ORGANIC MATERIALS AGAINST THE DEGRADATIVE EFFECT OF SUCH RADIATION ARE CHARACTERIZED AS ARYL, HETERO ACRYLAMIDES, THE SAID HETERO MOIETY BEING OF THE GROUP CONTAINING 5 AND 6 MEMBERS IN THE RING AND WHEREIN THE HETERO ATOM IS AT LEAST ONE OF THE GROUP OF OXYGEN, NITROGEN, AND SULFUR.
Inventors
- 👤 Albert F Strobel
- 👤 Sigmund C Catino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:41
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/12; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/54; C07D213/57; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/54; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/24; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/36; C08K5/45
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |