Patent US2889350A successfully refreshed from Google Patents.
US2889350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of preparing synthetic organo silicon chlorides
Assignee: Office National d'Études et de Recherches Aérospatiales
•
Filing: 1957-02-07
•
Granted: 1959-06-02
•
Expires: 1977-02-07
Abstract
No abstract record available.
Inventors
- 👤 Horny Charles
- 👤 Guinet Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:48
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
THE METHOD OF PRODUCIG AN ORGANO-SILICON CHLORIDE WHICH COMPRISES REACTING A MEMBER OF THE GROUP CONSISTING OF LOWER ALKYL CHLORIDES AND ARYL CHLORIDES WITH A MIXTURE OF SILICON AND THE COPRECIPITATE RESULTING FROM THE ACTION OF AN ALKALINE HYDROXIDE UPON AN ALUMINUM SALT AND A COPPER SALT MIXED TOGETHER IN RESPECTIVE PROPORTIONS SUCH THAT THE MIXTURE CONTAINS FROM 0.1 TO 5 ATOMS OF ALUMINIUM FOR ONE ATOM OF COPPER, THE AMOUNT OF ALKALINE HYDROXIDE BEING SUCH AS TO GIVE THE FINAL PH A VALUE, RANGING FROM 5 TO 9, SAID MIXTURE OF SILICON AND COPRECIPITATE, IN WHICH THE AMOUNT OF SILICON RANGES FROM 10 TO 90 PERCENT OF THE TOTAL MASS, BEING ACTIVATED BY HEATING BEFORE REACTION WITH THE CHLORIDE.
Claim 2
Independent Claim
120 words
THE METHOD OF PRODUCIG AN ORGANO-SILICON CHLORIDE WHICH COMPRISES REACTING A MEMBER OF THE GROUP CONSISTING OF LOWER ALKYL CHLORIDES AND ARYL CHLORIDES WITH A MIXTURE OF SILICON AND THE COPRECIPITATE RESULTING FROM THE ACTION OF AN ALKALINE HYDROXIDE UPON AN ALUMINUM SALT AND A COPPER SALT MIXED TOGETHER IN RESPECTIVE PROPORTIONS SUCH THAT THE MIXTURE CONTAINS FROM 0.1 TO 5 ATOMS OF ALUMINIUM FOR ONE ATOM OF COPPER, THE AMOUNT OF ALKALINE HYDROXIDE BEING SUCH AS TO GIVE THE FINAL PH A VALUE, RANGING FROM 5 TO 9, SAID MIXTURE OF SILICON AND COPRECIPITATE, IN WHICH THE AMOUNT OF SILICON RANGES FROM 10 TO 90 PERCENT OF THE TOTAL MASS, BEING ACTIVATED BY HEATING BEFORE REACTION WITH THE CHLORIDE.
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) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |