Patent US3245981A successfully refreshed from Google Patents.
US3245981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-alkoxy-2-benzothiazole monoazo dyestuffs
Assignee: Honeywell International Inc
•
Filing: 1963-02-28
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Granted: 1966-04-12
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Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Paul L Stright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:22
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/79; D06P3/795; C; C09; C09B; C09B45/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
MAONOAZO COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
MAONOAZO COMPOUNDS HAVING THE FORMULA
References Cited (Backward Citations)
US2096722A
Cited
US2359862A
Cited
US2972508A
Cited
US2955901A
Cited
US2980666A
Cited
US3084153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |