Patent US1717219A successfully refreshed from Google Patents.
Patent US3274171A successfully refreshed from Google Patents.
US3274171A
Expired / Lapsed
US
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Monoazo dyestuffs containing a benzothiazole nucleus
Assignee: Honeywell International Inc
•
Filing: 1963-04-29
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Granted: 1966-09-20
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Norman L Anderson
- 👤 Alvin C Litke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:16
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/28; C07C309/45; C07C309/51; C09; C09B; C09B29/00; C09B29/0025
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)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |