US2852544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organometallic halides
Assignee: Phillips Petroleum Co
•
Filing: 1955-10-26
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Granted: 1958-09-16
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Expires: 1975-10-26
Abstract
No abstract record available.
Inventors
- 👤 Nowlin Gene
- 👤 Harold D Lyons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:13
CPC Classifications
C; C07; C07F; C07F5/00; C07F3/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
IN A PROCESS FOR THE PREPARATION OF ALKYL METALLIC HALIDES CORRESPONDING TO THE FORMULA RMMXN, WHEREIN R IS A LOWER ALKYL RADICAL, M IS A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, GALLIUM, INDIUM, THALLIUM AND BERYLLIUM, X IS A HALOGEN, AND M AND N ARE INTEGERS, EACH OF WHICH IS GREATER THAN ZERO AND THE SUM OF M AND N BEING EQUAL TO THE VALENCE OF METAL M, WHICH COMPRISES CONTACTING ONE OF SAID METAL M IN A REACTION ZONE WITH A LOWER ALKYL HALIDE IN THE GASEOUS PHASE, THE IMPROVEMENT COMPRISING INTRODUCING SAID LOWER ALKYL HALIDE INTO SAID REACTION ZONE BELOW THE SURFACE OF THE REACTION MIXTURE FORMED THEREIN.
References Cited (Backward Citations)
US2691668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |