US2653160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organometallic compounds by reaction between dry diazonium compounds and metallic salts in organic solvents
Assignee: Individual
•
Filing: 1951-08-30
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Granted: 1953-09-22
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Expires: 1971-08-30
Abstract
No abstract record available.
Inventors
- 👤 George O Doak
- 👤 Leon D Freedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:35
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F3/00; C07F3/10; C07F3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE METHOD OF PREPARING ORGANOMETALLIC COMPOUNDS WHICH COMPRISES MIXING TOGETHER A DRY DIAZONIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIAZONIUM ARYL FLUOBORATES AND ARYL DIAZONIUM FLUOSILICATES AND A HALIDE SELECTED FROM THE GROUP CONSISTING OF HGCL2, SNCL2, PHCL2, RHGCL, ASCL3, SBCL3, PCL3, BICL3, SICL4, PRCL2, R2PCL, AND RASCL2 WHEREIN R IS AN AORGANIC RADICAL SELECTED FROM THE GROUP CONSISTING OF THE SUBSITUTED AND UNSUBSTITUTED AROMATIC AND ALIPHATIC RADICALS, UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS IN THE PRESENCE OF AN ORGANIC SOLVENT AND A CATALYST SELECTED FROM THE GROUP CONSISTING OF COPPER METAL AND COPPER SALT AND HYDROLYZING THE REACTION PRODUCTS TO PRODUCE THE MONO-AND DI-ACIDS THEREOF.
Claim 2
Independent Claim
105 words
THE METHOD OF PREPARING ORGANOMETALLIC COMPOUNDS WHICH COMPRISES MIXING TOGETHER A DRY DIAZONIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIAZONIUM ARYL FLUOBORATES AND ARYL DIAZONIUM FLUOSILICATES AND A HALIDE SELECTED FROM THE GROUP CONSISTING OF HGCL2, SNCL2, PHCL2, RHGCL, ASCL3, SBCL3, PCL3, BICL3, SICL4, PRCL2, R2PCL, AND RASCL2 WHEREIN R IS AN AORGANIC RADICAL SELECTED FROM THE GROUP CONSISTING OF THE SUBSITUTED AND UNSUBSTITUTED AROMATIC AND ALIPHATIC RADICALS, UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS IN THE PRESENCE OF AN ORGANIC SOLVENT AND A CATALYST SELECTED FROM THE GROUP CONSISTING OF COPPER METAL AND COPPER SALT AND HYDROLYZING THE REACTION PRODUCTS TO PRODUCE THE MONO-AND DI-ACIDS THEREOF.
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) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |