US3012040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for n-alkylation of indoles
Assignee: Honeywell International Inc
•
Filing: 1958-10-15
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Granted: 1961-12-05
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Expires: 1978-10-15
Abstract
No abstract record available.
Inventors
- 👤 Charles J Lind
- 👤 Sogn Allen Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:52
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C07D209/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
THE PROCESS OF PRODUCING AN N-AKLYL INDOLE BY REACTING AN ALKYLATING AGENT SELECTED FROM THE GROUP CONSISTING OF LOWER DIALKYL SULFATES, METHYL IODIDE, METHYL BENZENESULFONATE, METHYL-P-TOLUENESULFONATE, AND NORMALBUTYL-P-BROMBENZENE SULFONATE WITH AN INDOLE HAVING THE FORMULA:
Claim 2
Dependent Claim
35 words
THE PROCESS OF PRODUCING AN N-AKLYL INDOLE BY REACTING AN ALKYLATING AGENT SELECTED FROM THE GROUP CONSISTING OF LOWER DIALKYL SULFATES, METHYL IODIDE, METHYL BENZENESULFONATE, METHYL-P-TOLUENESULFONATE, AND NORMALBUTYL-P-BROMBENZENE SULFONATE WITH AN INDOLE HAVING 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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |