Patent US3258459A successfully refreshed from Google Patents.
US3258459A
Expired / Lapsed
US
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Method for the preparation of n-monosubstituted-secondary aminoalkyl derivatives of polycyclic compounds
Assignee: ER Squibb and Sons LLC
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Filing: 1962-08-30
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Granted: 1966-06-28
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Expires: 1982-08-30
Abstract
No abstract record available.
Inventors
- 👤 Harry L Yale
- 👤 Francis A Sowinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:55
CPC Classifications
C; C07; C07D; C07D513/00; C07D513/02; C07D513/04; C07D281/00; C07D281/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A METHOD FOR INTRODUCING AN N-MONOSUBSTITUTED AMINOLAKYLENE SIDE CHAIN INTO THE NUCLEUS OF A POLYCYCLIC NUCLEAR COMPOUND WHICH COMPRISES REACTING A POLYCYCLIC NUCLEAR COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHENOTHIAZINE AND DIBENZOTHIAZEPINE IN N INERT ORGANIC SOLVENT AT A TEMPERATURE UP TO ABOUT REFLUX WITH AN AMINOALKYL HALIDE OF THE FORMULA
Claim 2
Independent Claim
52 words
A METHOD FOR INTRODUCING AN N-MONOSUBSTITUTED AMINOLAKYLENE SIDE CHAIN INTO THE NUCLEUS OF A POLYCYCLIC NUCLEAR COMPOUND WHICH COMPRISES REACTING A POLYCYCLIC NUCLEAR COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHENOTHIAZINE AND DIBENZOTHIAZEPINE IN N INERT ORGANIC SOLVENT AT A TEMPERATURE UP TO ABOUT REFLUX WITH AN AMINOALKYL HALIDE OF THE FORMULA
References Cited (Backward Citations)
US2921069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |