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US3706700A
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Use of bis-methylene malonic acid nitriles in light sensitive materials
Assignee: Novartis Corp
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Filing: 1970-07-24
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Granted: 1972-12-19
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Expires: 1990-07-24
Abstract
Abstract METHYLENE MALONIC ACID NITRILES, USEFUL AS UV ABSORBERS, ARE EMPLOYED IN LIGHT SENSITIVE MATERIALS.
Inventors
- 👤 Rudolph Kirchmayr
- 👤 Hans Jakob Peterli
- 👤 Hansjorg Heller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:36
CPC Classifications
C; C07; C07C; C07C255/00; C08; C08K; C08K5/00; C08K5/16; C08K5/315; C08L; C08L1/00; C08L1/08; C08L1/10; C08L1/12; C09; C09B; C09B23/00; C09B23/14; C09B23/143; C09K; C09K15/00; C09K15/04; C09K15/06; C09K15/20; C09K15/28; D; D06; D06M; D06M13/00; D06M13/10; D06M13/184; D06M13/192; D06M13/203; D06M13/322; D06M13/345; D06M13/348; D06M13/402; D06M15/00; D06M15/19; D06M15/37; D06M15/53; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31935
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |