Patent US2800504A successfully refreshed from Google Patents.
US2800504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of lower aliphatic acids
Assignee: Distillers Co Yeast Ltd
•
Filing: 1953-10-09
•
Granted: 1957-07-23
•
Expires: 1973-10-09
Abstract
No abstract record available.
Inventors
- 👤 Elce Alec
- 👤 Robson Ian Kenneth Miles
- 👤 Young Donald Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:47
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/16; C07C51/21; C07C51/215
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS FOR THE PRODUCTION OF LOWER ALIPHATIC ACIDS WHICH COMPRISES OXIDISING IN THE LIQUID PHASE A PARAFFIN HYDROCARBON OF FOUR TO EIGHT CARBON ATOMS WITH MOLECULAR OXYGEN TO PRODUCE LOWER ALIPHATIC ACIDS AND LIGHT ENDS, DISTILLING THE OXIDATION PRODUCT TO SEPARATE AS LIGHT ENDS THE MATERIALS BOILING BELOW 99*C. IN THE PRESENCE OF WATER, ADMIXING SAID LIGHT ENDS WITH A PARAFFIN HYDROCARBON OF FOUR TO EIGHT CARBON ATOMS, THEREAFTER OXIDISING IN THE LIQUID PHASE THIS MIXTURE WITH MOLECULAR OXYGEN WITHOUT SUBSTANTIAL ACCUMULATION OF LIGHT ENDS TO PRODUCE LOWER ALIPHATIC ACIDS AT A GREATER RATIO OF SAID ACIDS TO HYDROCARBON CONSUMED THAN IN SUCH OXIDATION OF THE HYDROCARBON ALONE.
Claim 2
Dependent Claim
109 words
A PROCESS FOR THE PRODUCTION OF LOWER ALIPHATIC ACIDS WHICH COMPRISES OXIDISING IN THE LIQUID PHASE A PARAFFIN HYDROCARBON OF FOUR TO EIGHT CARBON ATOMS WITH MOLECULAR OXYGEN TO PRODUCE LOWER ALIPHATIC ACIDS AND LIGHT ENDS, DISTILLING THE OXIDATION PRODUCT TO SEPARATE AS LIGHT ENDS THE MATERIALS BOILING BELOW 99*C. IN THE PRESENCE OF WATER, ADMIXING SAID LIGHT ENDS WITH A PARAFFIN HYDROCARBON OF FOUR TO EIGHT CARBON ATOMS, THEREAFTER OXIDISING IN THE LIQUID PHASE THIS MIXTURE WITH MOLECULAR OXYGEN WITHOUT SUBSTANTIAL ACCUMULATION OF LIGHT ENDS TO PRODUCE LOWER ALIPHATIC ACIDS AT A GREATER RATIO OF SAID ACIDS TO HYDROCARBON CONSUMED THAN IN SUCH OXIDATION OF THE HYDROCARBON ALONE.
References Cited (Backward Citations)
US2265948A
Cited
US2439513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |