Patent US3458496A successfully refreshed from Google Patents.
US3458496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive monoazo dyes containing 2,4-dihalopyrimidine groups
Assignee: Sandoz AG
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Filing: 1964-05-01
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Granted: 1969-07-29
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Expires: 1984-05-01
Abstract
No abstract record available.
Inventors
- 👤 Jacques Guenthard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:47
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
FIBER REACTIVE DYE OF THE FORMULA
Claim 2
Dependent Claim
6 words
FIBER REACTIVE DYE OF THE FORMULA
References Cited (Backward Citations)
FR1247660A
Cited
GB903048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |