US2992248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes for preparing halo group iii-a hydrides and halo group iii-a hydrocarbons
Assignee: Ethyl Corp
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Filing: 1957-04-10
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Granted: 1961-07-11
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Expires: 1977-04-10
Abstract
No abstract record available.
Inventors
- 👤 Tillmon H Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:43
CPC Classifications
C; C01; C01B; C01B6/00; C01B35/00; C01B35/02; C01B35/026; C07; C07F; C07F5/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
52 words
A PROCESS FOR PREPARING A HALO GROUP IIIA HYDROCARBON COMPOUND WHICH COMPRISES REACTING A GROUP IIIA ELEMENT WITH A HALIDE THEREOF AND HYDROGEN AT SUPRAATMOSPHERIC PRESSURE UNTIL THE REACTION IS ESSENTIALLY COMPLETE, VENTING ESSENTIALLY ALL THE UNREACTED HYDROGEN FROM THE REACTION SYSTEM, AND REACTING THE PRODUCT THEREBY PRODUCED WITH AN ALPHA OLEFIN.
References Cited (Backward Citations)
US2271956A
Cited
FR1122000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |