Patent US3340247A successfully refreshed from Google Patents.
US3340247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disazo triazine dyestuffs
Assignee: BASF Schweiz AG
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Filing: 1965-09-08
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Granted: 1967-09-05
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Expires: 1985-09-08
Abstract
No abstract record available.
Inventors
- 👤 Riat Henri
- 👤 Seitz Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:07
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/022; C09B62/026; C09B62/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A WATER-SOLUBLE DISAZO DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
7 words
A WATER-SOLUBLE DISAZO 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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |