US3054795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dibenzanthrone vat dyestuffs containing a reactive triazine nucleus
Assignee: BASF Schweiz AG
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Filing: 1960-06-16
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Granted: 1962-09-18
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Expires: 1980-06-16
Abstract
No abstract record available.
Inventors
- 👤 Staeuble Max
- 👤 Weber Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:51
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/002; C09B62/004; C09B3/00; C09B3/22; C09B3/30; C09B3/38; C09B62/44; C09B62/4401; C09B62/4403; C09B62/4409
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THE DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
5 words
THE 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) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |