US2765304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New ox-diazole compounds and process for their manufacture
Assignee: BASF Schweiz AG
•
Filing: 1953-05-18
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Granted: 1956-10-02
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Expires: 1973-05-18
Abstract
No abstract record available.
Inventors
- 👤 Siegrist Adolf Emil
- 👤 Moergeli Eduard
- 👤 Hoelzle Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:36
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/8155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A SUBSTANTIALLY COLORLESS COMPOUND WHICH CONTAINS AT LEAST ONE 1:3:4-OX-DIAZOLE RING, IN WHICH COMPOUND ALL THE NITROGEN ATOMS ARE TRIVALENT AND WHICH WHEN APPLIED TO A SUBSTRATUM EXHIBITS A GREEN-BLUE TO VIOLET FLUORESENCE IN ULTRAVIOLET LIGHT AND CORRESPONDS TO THE FORMULA
Claim 2
Dependent Claim
41 words
A SUBSTANTIALLY COLORLESS COMPOUND WHICH CONTAINS AT LEAST ONE 1:3:4-OX-DIAZOLE RING, IN WHICH COMPOUND ALL THE NITROGEN ATOMS ARE TRIVALENT AND WHICH WHEN APPLIED TO A SUBSTRATUM EXHIBITS A GREEN-BLUE TO VIOLET FLUORESENCE IN ULTRAVIOLET LIGHT AND CORRESPONDS TO 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) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |