Patent US3513154A successfully refreshed from Google Patents.
US3513154A
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Disazo dyestuffs containing a diazotized methyl or methoxy - p - chloroaniline coupled with an n,n' - (polyhalo - p-phenylene)-bisacetoacetamide
Assignee: Kewanee Oil Co
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Filing: 1966-12-19
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Granted: 1970-05-19
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Expires: 1986-12-19
Abstract
No abstract record available.
Inventors
- 👤 Jack L Towle
- 👤 Anton Mudrak
- 👤 Vernon J Weir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:41
CPC Classifications
C; C09; C09B; C09B33/00; C09B33/02; C09B33/153
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA476227A
Cited
US2153539A
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US2361566A
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US2361567A
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US2591470A
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US2739146A
Cited
US2936306A
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US2984660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |