Patent US3484431A successfully refreshed from Google Patents.
US3484431A
Expired / Lapsed
US
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Metallized reactive naphtholazo naphthol dyestuffs containing a polyhalogenated pyrimidine group
Assignee: Sandoz AG
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Filing: 1963-07-15
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Granted: 1969-12-16
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Expires: 1983-07-15
Abstract
No abstract record available.
Inventors
- 👤 Lukas Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:59
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/022; C09B62/026; C09B62/002; C09B62/006; C09B62/008; C09B62/028; C09B62/032; D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/32; D06P3/3286; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A MONOAZO DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
6 words
A MONOAZO DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
US2919269A
Cited
US3157630A
Cited
US2943085A
Cited
US2951071A
Cited
FR1246743A
Cited
FR1221621A
Cited
US3288777A
Cited
FR1225281A
Cited
FR1241551A
Cited
US3268505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |