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Patent US2555943A successfully refreshed from Google Patents.
US2555943A
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Dihalo-4-(aliphatic tertiaryamino-alkylamino)quinolines
Assignee: STWB Inc
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Filing: 1947-06-28
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Granted: 1951-06-05
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Expires: 1967-06-28
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Surrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:15
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/38; C07D215/42; C07D215/46; C07D215/18; C07D215/48
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
36 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A DIHALO-4-(ALIPHATIC TERTIARY-AMINOALKYLAMINO) -QUINOLINE, WHEREIN THE HALOGEN ATOMS ARE AT TWO OF THE POSITIONS NUMBERED 5 6 AND 8 OF THE QUINOLINE NUCLEUS AND ACID ADDITION SALTS THEREOF.
Claim 2
Dependent Claim
36 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A DIHALO-4-(ALIPHATIC TERTIARY-AMINOALKYLAMINO) -QUINOLINE, WHEREIN THE HALOGEN ATOMS ARE AT TWO OF THE POSITIONS NUMBERED 5 6 AND 8 OF THE QUINOLINE NUCLEUS AND ACID ADDITION SALTS THEREOF.
Claim 3
Dependent Claim
16 words
A DIHALO-4-HYDROXYQUINOLINE WHEREIN THE HALOGEN ATOMS ARE AT TWO OF THE POSITIONS NUMBERED 5,6 AND 8.
Claim 4
Dependent Claim
16 words
A DIHALO-4-HYDROXYQUINOLINE WHEREIN THE HALOGEN ATOMS ARE AT TWO OF THE POSITIONS NUMBERED 5,6 AND 8.
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) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |