US3041328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallized disazo dyes
Assignee: Sandoz AG
•
Filing: 1960-05-06
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Granted: 1962-06-26
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Expires: 1980-05-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Wilhelm Kraus
- 👤 Steinemann Willy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:36
CPC Classifications
C; C09; C09B; C09B50/00; C09B33/00; C09B33/02; C09B33/16; C09B62/00; C09B62/02; C09B62/022; C09B62/026; C09B62/032
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A DYESTUFF SELECTED FROM THE GROUP CONSISTING OF DYES OF THE FORMULA
Claim 2
Dependent Claim
12 words
A DYESTUFF SELECTED FROM THE GROUP CONSISTING OF DYES OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |