US3332932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoazo pigments of diazotized 3-amino-4-methylbenzamide with naphthols
Assignee: Interchemical Corp
•
Filing: 1964-08-14
•
Granted: 1967-07-25
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Expires: 1984-08-14
Abstract
No abstract record available.
Inventors
- 👤 Lucia John J De
- 👤 Roy A Pizzarello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:01
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/10; C09B29/18; C09B29/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
AZO PIGMENTS HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
AZO PIGMENTS HAVING THE FORMULA
References Cited (Backward Citations)
US2899421A
Cited
US3125402A
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US2030896A
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US2006211A
Cited
US2123634A
Cited
US2167142A
Cited
DE921592C
Cited
US2742459A
Cited
US3148935A
Cited
US3086004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |