Patent US2870160A successfully refreshed from Google Patents.
US2870160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2 (benzofuranyl amino)-and 2 (thianaphthenyl amino) oxazolines
Assignee: Pfizer Inc
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Filing: 1957-07-08
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Granted: 1959-01-20
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Expires: 1977-07-08
Abstract
No abstract record available.
Inventors
- 👤 Barry M Bloom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:31
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/77; C07D307/78; C07D307/82; C07D333/00; C07D333/50; C07D333/52; C07D333/62; C07D333/66; C07D403/00; C07D403/02; C07D403/12; C07D413/00; C07D413/02; C07D413/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF SUBSTITUTED AND UNSUBSITUTED 2 - (BENZOFURANYLAMINO)OXAZOLINES, 2-(THIANAPHTHENYLAMINO)-OXAZOLINES AND THEIR PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS WHEREIN; (A) EACH SUBSTITUENT ON A BENZOFURANYL AND THIANAPHTHENYL RING IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALKOXY AND THIOALKY GROUPS EACH CONTAINING UP TO FOUR CARBON ATOMS, AND CHLORINE, BROMINE AND IODINE ATOMS, THERE BEING FROM ONE TO THREE SUCH SUBSTITUENTS, AND (B) EACH SUBSTITUENT ON A SUBSTITUTED METHYLENE GROUP OF THE OXAZOLINE RING IS SELECTED FROM THE GROUP CONSISTING OF ONE TO FOUR CARBON ATOM ALKYL GROUPS, THERE BEING A TOTAL OF FROM ONE TO EIGHT CARBON ATOMS IN SUCH SUBSTITUENTS.
Claim 2
Dependent Claim
106 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF SUBSTITUTED AND UNSUBSITUTED 2 - (BENZOFURANYLAMINO)OXAZOLINES, 2-(THIANAPHTHENYLAMINO)-OXAZOLINES AND THEIR PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS WHEREIN; (A) EACH SUBSTITUENT ON A BENZOFURANYL AND THIANAPHTHENYL RING IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALKOXY AND THIOALKY GROUPS EACH CONTAINING UP TO FOUR CARBON ATOMS, AND CHLORINE, BROMINE AND IODINE ATOMS, THERE BEING FROM ONE TO THREE SUCH SUBSTITUENTS, AND (B) EACH SUBSTITUENT ON A SUBSTITUTED METHYLENE GROUP OF THE OXAZOLINE RING IS SELECTED FROM THE GROUP CONSISTING OF ONE TO FOUR CARBON ATOM ALKYL GROUPS, THERE BEING A TOTAL OF FROM ONE TO EIGHT CARBON ATOMS IN SUCH SUBSTITUENTS.
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) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |