Patent US3135762A successfully refreshed from Google Patents.
US3135762A
Expired / Lapsed
US
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Bis(benzoxazolyl)thiophene compounds
Assignee: BASF Schweiz AG
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Filing: 1962-01-10
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Granted: 1964-06-02
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Expires: 1982-01-10
Abstract
No abstract record available.
Inventors
- 👤 Maeder Erwin
- 👤 Liechti Peter
- 👤 Duennenberger Max
- 👤 Siegrist Adolf Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:50
CPC Classifications
C; C07; C07D; C07D413/00; C07D413/14; C08; C08F; C08F2/00; C08F2/44; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18; C08K5/36; C08K5/45; C11; C11D; C11D3/00; C11D3/40; C11D3/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
THE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
THE COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
5 words
THE COMPOUND OF THE FORMULA
Claim 4
Dependent Claim
5 words
THE COMPOUND 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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |