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US3379779A
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Bis-aryl methylene malononitriles
Assignee: GAF Chemicals Corp
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Filing: 1967-01-23
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Granted: 1968-04-23
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Expires: 1987-01-23
Abstract
No abstract record available.
Inventors
- 👤 Albert F Strobel
- 👤 Catino Sigmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:25
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/54; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/24; C07D333/26; C07D333/28; C08; C08K; C08K5/00; C08K5/36; C08K5/45; C09; C09K; C09K15/00; C09K15/04; C09K15/16; C09K15/28; C09K15/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |