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US3178405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-insoluble monoazo dyestuffs
Assignee: Individual
•
Filing: 1961-02-16
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Granted: 1965-04-13
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Expires: 1981-02-16
Abstract
No abstract record available.
Inventors
- 👤 Merian Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:33
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/06; C09B29/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
MONOAZO DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
5 words
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |