US2948753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-bis(p-dialkylaminophenyl)methyl sulfonamides
Assignee: Honeywell International Inc
•
Filing: 1958-05-12
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Granted: 1960-08-09
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Expires: 1978-05-12
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Kranz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:48
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/70; B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/136; C07D275/00; C07D275/04; C07D275/06; C09; C09B; C09B11/00; C09B11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
N-BIS(P-DIALKYLAMINOARYL)METHYL SULFONAMIDES IN WHICH THE ALKYL GROUPS OF THE DIALKYLAMINO RADICALS EACH HAVE 1 TO 5 CARBON ATOMS, THE ARYL RADICALS ARE EACH SELECTED FROM THE GROUP CONSISTING OF PHENYLENE AND PHENYLENE MONOSUBSTITURED BY A MEMBER OF THE GROUP CONSISTING OF LOWER ALKYL, LOWER ALKYL, FLUORINE CHLORIEN, BROMINE, DI-LOWER ALKYLAMINO, LOWER ALKANOYLAMINO, AND -SO2NH2, AND THE SULFONAMIDE RADICALS HAVE THE FORMULA:
Claim 2
Dependent Claim
61 words
N-BIS(P-DIALKYLAMINOARYL)METHYL SULFONAMIDES IN WHICH THE ALKYL GROUPS OF THE DIALKYLAMINO RADICALS EACH HAVE 1 TO 5 CARBON ATOMS, THE ARYL RADICALS ARE EACH SELECTED FROM THE GROUP CONSISTING OF PHENYLENE AND PHENYLENE MONOSUBSTITURED BY A MEMBER OF THE GROUP CONSISTING OF LOWER ALKYL, LOWER ALKYL, FLUORINE CHLORIEN, BROMINE, DI-LOWER ALKYLAMINO, LOWER ALKANOYLAMINO, AND -SO2NH2, AND THE SULFONAMIDE RADICALS HAVE THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |