US3304310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain anthraquinonethiazole compounds
Assignee: BASF Schweiz AG
•
Filing: 1962-06-11
•
Granted: 1967-02-14
•
Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Hari Istvan
- 👤 Staeuble Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:57
CPC Classifications
C; C09; C09B; C09B5/00; C09B5/62; C07; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/26; C07D333/38; C09B1/00; C09B1/16; C09B1/20; C09B1/36; C09B1/42; C09B1/44; C09B1/445; C09B1/46; C09B1/467; C09B3/00; C09B3/22; C09B3/30; C09B3/38; C09B5/24; C09B5/26; C09B5/28; C09B5/34; C09B5/40; C09B62/00; C09B62/02; C09B62/04; C09B62/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
2-CARBOXYBENZOYLAMINOANTHRAQUINONYL-5:6 - PHTHALOLBENZTHIAZOLE.
Claim 2
Dependent Claim
3 words
2-CARBOXYBENZOYLAMINOANTHRAQUINONYL-5:6 - PHTHALOLBENZTHIAZOLE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |