US3129260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of a benzaldoxime
Assignee: Shell USA Inc
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Filing: 1961-11-29
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Granted: 1964-04-14
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Expires: 1981-11-29
Abstract
No abstract record available.
Inventors
- 👤 Yates John
- 👤 Willcox Trevor John
- 👤 Wood Derek Alexander
- 👤 Haken Pieter Ten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:36
CPC Classifications
C; C07; C07C; C07C251/00; C07C251/32; C07C251/34; C07C251/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR PREPARING 2,6-DICHLOROBENZALDOXIME WHICH COMPRISES MIXING, AT A TEMPERATURE OF FROM ABOUT 15*C. TO ABOUT 70*C., AND THEREBY EFFECTING REACTION BETWEEN, A CHLORIDE OF THE GROUP CONSISTING OF 2,6-DICHLOROBENZAL CHLORIDE, 2,6-DICHLOROBENZYL CHLORIDE AND MIXTURES THEREOF AND HYDROXYLAMINE IN THE PRESENCE OF A STRONG MINERAL ACID, THE AMOUNT OF HYDROXYLAMINE BEING APPROXIMATELY THE THEORETICAL AMOUNT REQUIRED TO REACT WITH ALL OF SAID CHLORIDE REACTANT, AND THE AMOUNT OF SAID ACID BEING FROM ABOUT ONE-HALF TO ABOUT TWENTY TIMES THE WEIGHT OF SAID CHLORIDE REACTANT.
Claim 2
Dependent Claim
85 words
A PROCESS FOR PREPARING 2,6-DICHLOROBENZALDOXIME WHICH COMPRISES MIXING, AT A TEMPERATURE OF FROM ABOUT 15*C. TO ABOUT 70*C., AND THEREBY EFFECTING REACTION BETWEEN, A CHLORIDE OF THE GROUP CONSISTING OF 2,6-DICHLOROBENZAL CHLORIDE, 2,6-DICHLOROBENZYL CHLORIDE AND MIXTURES THEREOF AND HYDROXYLAMINE IN THE PRESENCE OF A STRONG MINERAL ACID, THE AMOUNT OF HYDROXYLAMINE BEING APPROXIMATELY THE THEORETICAL AMOUNT REQUIRED TO REACT WITH ALL OF SAID CHLORIDE REACTANT, AND THE AMOUNT OF SAID ACID BEING FROM ABOUT ONE-HALF TO ABOUT TWENTY TIMES THE WEIGHT OF SAID CHLORIDE REACTANT.
References Cited (Backward Citations)
GB190713599A
Cited
US1051578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |