US2926191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical process
Assignee: Distillers Co Yeast Ltd
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Filing: 1957-05-07
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Granted: 1960-02-23
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Expires: 1977-05-07
Abstract
No abstract record available.
Inventors
- 👤 Lawson-Hall Griffiths
- 👤 Millidge Alfred Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:19
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/16; C07C51/21; C07C51/215
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
THE PROCESS FOR THE PRODUCTION OF LOWER ALIPHATIC ACIDS WHICH COMPRISES OXIDISING AT AN ELEVATED TEMPERATURE WITH MOLECULAR OXYGEN A PARAFFIN HYDROCARBON OF 4 TO 8 CARBON ATOMS IN THE LIQUID PHASE TO PRODUCE LOWER ALIPHATIC ACIDS OF 1 TO 4 CARBON ATOMS AND OXIDATION WASTE GASES CONTAINING RECOVERABLE ORGANIC MATERIAL SEPARATING THE PRIMARY OXIDATION PRODUCT FROM THE OXIDATION WASTE GASES, DISTILLING OXIDATION PRODUCT TO SEPARATE AS LIGHT ENDS THE MATERIAL BOILING IN THE PRESENCE OF WATER BELOW 99*C., CONTACTING AT A TEMPERATURE OF -1 TO -50*C. SAID OXIDATION WASTE GASES ARE ENDS WHEREBY ORGANIC MATERIALS FROM THE WASTE GASES ARE CONDENSED, AND THEREAFTER OXIDISING THE LIGHT ENDS TOGETHER WITH THE CONDENSED MATERIAL AT AN ELEVATED TEMPERATURE IN THE LIQUID PHASE WITH MOLECULAR OXYGEN YO PRODUCE ADDITIONAL QUANTITIES OF LOWER ALIPHATIC ACIDS.
Claim 2
Dependent Claim
132 words
THE PROCESS FOR THE PRODUCTION OF LOWER ALIPHATIC ACIDS WHICH COMPRISES OXIDISING AT AN ELEVATED TEMPERATURE WITH MOLECULAR OXYGEN A PARAFFIN HYDROCARBON OF 4 TO 8 CARBON ATOMS IN THE LIQUID PHASE TO PRODUCE LOWER ALIPHATIC ACIDS OF 1 TO 4 CARBON ATOMS AND OXIDATION WASTE GASES CONTAINING RECOVERABLE ORGANIC MATERIAL SEPARATING THE PRIMARY OXIDATION PRODUCT FROM THE OXIDATION WASTE GASES, DISTILLING OXIDATION PRODUCT TO SEPARATE AS LIGHT ENDS THE MATERIAL BOILING IN THE PRESENCE OF WATER BELOW 99*C., CONTACTING AT A TEMPERATURE OF -1 TO -50*C. SAID OXIDATION WASTE GASES ARE ENDS WHEREBY ORGANIC MATERIALS FROM THE WASTE GASES ARE CONDENSED, AND THEREAFTER OXIDISING THE LIGHT ENDS TOGETHER WITH THE CONDENSED MATERIAL AT AN ELEVATED TEMPERATURE IN THE LIQUID PHASE WITH MOLECULAR OXYGEN YO PRODUCE ADDITIONAL QUANTITIES OF LOWER ALIPHATIC ACIDS.
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) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |