US3092615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azo dyestuffs containing a quaternized pyrazolone radical
Assignee: Compagnie Francaise des Matieres Colorantes SARL
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Filing: 1960-06-29
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Granted: 1963-06-04
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Expires: 1980-06-29
Abstract
No abstract record available.
Inventors
- 👤 Mingasson Georges Raymon Henry
- 👤 Ferrand Marcelle Henriette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:37
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/34; C09B29/36; C09B29/3604; C09B29/3647; C09B29/3652; C09B29/366; Y; Y10; Y10S; Y10S8/00; Y10S8/18; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
AZO DYESTUFF OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
6 words
AZO DYESTUFF OF THE GENERAL FORMULA:
References Cited (Backward Citations)
US2883373A
Cited
US2972508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |