Patent US2870159A successfully refreshed from Google Patents.
US2870159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenated 2-(1-naphthylamino)-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
2026-11-05 17:05
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/26; C07C303/30; C07C273/00; C07C273/18; C07C273/1809; C07C273/1818; C07C273/1827; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/16; C07D263/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF SUBSTITUTED AND UNSUBSTITUTED 2-(1,2,3,4-TETRAHYDRO-1NAPHTHYLAMINO) - OXAZOLINES, 2 - (1,2,3,4,5,6,7,8 - OCTAHYDRO-1-NAPHTHYLAMINO)-OXAZOLINE AND 2-(1,2,3,4,5,6,7, 8,9,10-DECAHYDRO-1-NAPHTHYLAMINO)-OXAZOLINE, AND THEIR PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS WHEREIN; (A) EACH SUBSTITUENT ON A SUBSTITUTED NAPHTHYL RING IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALKOXY AND THIOALKYL GROUPS EACH CONTAINING UP TO FOUR CARBON ATOMS AND CHLORINE, BROMINE AND IODINE, THERE BEING FROM ONEE TO THREE SUCH SUBSTITUENTS; (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
109 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF SUBSTITUTED AND UNSUBSTITUTED 2-(1,2,3,4-TETRAHYDRO-1NAPHTHYLAMINO) - OXAZOLINES, 2 - (1,2,3,4,5,6,7,8 - OCTAHYDRO-1-NAPHTHYLAMINO)-OXAZOLINE AND 2-(1,2,3,4,5,6,7, 8,9,10-DECAHYDRO-1-NAPHTHYLAMINO)-OXAZOLINE, AND THEIR PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS WHEREIN; (A) EACH SUBSTITUENT ON A SUBSTITUTED NAPHTHYL RING IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALKOXY AND THIOALKYL GROUPS EACH CONTAINING UP TO FOUR CARBON ATOMS AND CHLORINE, BROMINE AND IODINE, THERE BEING FROM ONEE TO THREE SUCH SUBSTITUENTS; (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.
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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 |