US3133050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble reactive dyes of the phthalocyanine series
Assignee: Sandoz AG
•
Filing: 1963-03-08
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Granted: 1964-05-12
•
Expires: 1983-03-08
Abstract
No abstract record available.
Inventors
- 👤 Tobel Hans Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:47
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/002; C09B62/006; C09B62/0068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
4 words
DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
US3082201A
Cited
FR1221621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |