US3445453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yellow monoazo pigments having a greenish tint
Assignee: Novartis AG
•
Filing: 1966-07-01
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Granted: 1969-05-20
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Expires: 1986-07-01
Abstract
No abstract record available.
Inventors
- 👤 Emil Stocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:46
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/16; C08; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/23; C08K5/32; Y; Y10; Y10S; Y10S534/00; Y10S534/01
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) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |