US3288828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organometallic compounds
Assignee: —
•
Filing: —
•
Granted: 1966-11-29
•
Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:09
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/24; C07F5/00; C07F5/06; C07F5/061; C07F5/064; C07F7/02; C07F7/08; C07F7/12; C07F7/121; C07F7/122; C07F7/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
105 words
A METHOD OF MAKING ORGANOMETALLIC COMPOUNDS OF THE FORMULA (CH3)NMX4-N WHEREIN M IS AN ELEMENT OF GROUP IVA HAVING AN ATOMIC NUMBER OF 14-82 INCLUSIVE X IS A HALOGEN HAVING AN ATOMIC NUMBER OF 9-35 AND N IS AN INTEGAR HAVING A VALUE OF 1-4, COMPRISING REACTING IN AN ANHYDROUSS, OXYGEN-FREE ATMOSPHERE, A METALLIC HALIDE OF THE FORMULA MXM, WHEREIN M AND X ARE DEFINED AS AFORESAID AND M IS AN INTEGER EQUAL TO THE VALENCE OF M, WITH ALUMINUM CARBIDE IN THE PRESENCE OF AN AHHYDROUS ACID SELECTED FROM THE GROUP CONSISTING OF HYDROFLUORIC, HYDROBROMIC, HYDROCHOLRIC AND ACETIC ACID, AT A TEMPERATURE OF 70-450*C.
Claim 2
Independent Claim
105 words
A METHOD OF MAKING ORGANOMETALLIC COMPOUNDS OF THE FORMULA (CH3)NMX4-N WHEREIN M IS AN ELEMENT OF GROUP IVA HAVING AN ATOMIC NUMBER OF 14-82 INCLUSIVE X IS A HALOGEN HAVING AN ATOMIC NUMBER OF 9-35 AND N IS AN INTEGAR HAVING A VALUE OF 1-4, COMPRISING REACTING IN AN ANHYDROUSS, OXYGEN-FREE ATMOSPHERE, A METALLIC HALIDE OF THE FORMULA MXM, WHEREIN M AND X ARE DEFINED AS AFORESAID AND M IS AN INTEGER EQUAL TO THE VALENCE OF M, WITH ALUMINUM CARBIDE IN THE PRESENCE OF AN AHHYDROUS ACID SELECTED FROM THE GROUP CONSISTING OF HYDROFLUORIC, HYDROBROMIC, HYDROCHOLRIC AND ACETIC ACID, AT A TEMPERATURE OF 70-450*C.
Claim 3
Independent Claim
73 words
A METHOD OF MAKING METHYLALUMINUM COMPOUNDS OF THE FORMULA (CH3)NAIX3-N WHEREIN X IS A HALOGEN HAVING AN ATOMIC NUMBER OF 9-35 AND N IS AN INTEGER HAVING A VALUE OF 1-3, COMPRISING REACTING IN AN ANHYDROUS, OXYGEN-FREE ATMOSPHERE, ALUMINUM CARBIDE WITH AN ANHYDROUS HYDROGEN HALIDE OF THE FORMULA HX WHEREIN X IS DEFINED AS AFORESAID AT A TEMPERTURE OF 150-450* C. AND REMOVING SAID METHYL ALUMINUUM COMPOUNDS AS RAPIDLY AS THEY ARE FORMED.
Claim 4
Independent Claim
73 words
A METHOD OF MAKING METHYLALUMINUM COMPOUNDS OF THE FORMULA (CH3)NAIX3-N WHEREIN X IS A HALOGEN HAVING AN ATOMIC NUMBER OF 9-35 AND N IS AN INTEGER HAVING A VALUE OF 1-3, COMPRISING REACTING IN AN ANHYDROUS, OXYGEN-FREE ATMOSPHERE, ALUMINUM CARBIDE WITH AN ANHYDROUS HYDROGEN HALIDE OF THE FORMULA HX WHEREIN X IS DEFINED AS AFORESAID AT A TEMPERTURE OF 150-450* C. AND REMOVING SAID METHYL ALUMINUUM COMPOUNDS AS RAPIDLY AS THEY ARE FORMED.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |