Patent US3284462A successfully refreshed from Google Patents.
US3284462A
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2-aroxazolyl-5-aryl-thiophene compounds
Assignee: BASF Schweiz AG
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Filing: 1964-11-23
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Granted: 1966-11-08
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Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 Liechti Peter
- 👤 Guglielmetti Leonardo
- 👤 Maeder Erwin
- 👤 Siegrist Emil Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:22
CPC Classifications
C; C07; C07D; C07D409/00; C07D409/02; C07D409/04; C07D499/00; C08; C08K; C08K5/00; C08K5/36; C08K5/45; D; D06; D06L; D06L4/00; D06L4/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A THIOPHENE COMPOUND OF THE FORMULA (2-PHENYL, 5-(2-BENZOXAZOLYL)-THIOPHENE) (-X1)N WHERE THE WHEREIN THE BENZENE RING R3 MAY CONTAIN A MEMBER SELECTED FROM THE GROUP CONSISTING OF A PHENYL GROUP AND 1 TO 2 ALKYL GROUPS HAVING FROM 1 TO 4 C-ATOMS, N STANDS FOR A WHOLE NUMBER FROM 1 TO 2, AND X1 INDICATES A MEMBER SELECTED FROM THE GROUP CONSISTING OF A SULFONYL CHLORIDE, A SULFONYL FLUORIDE GROUP, A LOWER ALKYL SULFONATE GROUP, A PHENYL SULFONATE GROUP, A SULFONAMIDE GROUP OF THE FORMULA -SO2-N(-Y)-Y1 BENZENE PART OF THE BENZOXAZOLE RING IS R3 AND THE X1 CAN BE SUBSTITUTED ON ANY AVAILABLE CARBON. AND A RADICAL OF THE FORMULA
Claim 2
Dependent Claim
109 words
A THIOPHENE COMPOUND OF THE FORMULA (2-PHENYL, 5-(2-BENZOXAZOLYL)-THIOPHENE) (-X1)N WHERE THE WHEREIN THE BENZENE RING R3 MAY CONTAIN A MEMBER SELECTED FROM THE GROUP CONSISTING OF A PHENYL GROUP AND 1 TO 2 ALKYL GROUPS HAVING FROM 1 TO 4 C-ATOMS, N STANDS FOR A WHOLE NUMBER FROM 1 TO 2, AND X1 INDICATES A MEMBER SELECTED FROM THE GROUP CONSISTING OF A SULFONYL CHLORIDE, A SULFONYL FLUORIDE GROUP, A LOWER ALKYL SULFONATE GROUP, A PHENYL SULFONATE GROUP, A SULFONAMIDE GROUP OF THE FORMULA -SO2-N(-Y)-Y1 BENZENE PART OF THE BENZOXAZOLE RING IS R3 AND THE X1 CAN BE SUBSTITUTED ON ANY AVAILABLE CARBON. AND A RADICAL 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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |