US2674613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organic acid compositions
Assignee: Sinclair Refining Co
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Filing: 1950-03-09
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Granted: 1954-04-06
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Expires: 1970-03-09
Abstract
No abstract record available.
Inventors
- 👤 Nelson John Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:45
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/16; C07C51/21; C07C51/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
THE METHOD OF PREPARING ORGANIC ACID COMPOSITIONS WHICH COMPRISES THE STEP OF OXIDIZING MICROCRYSTALLINE WAX CONTAINING 34 TO 55 CARBON ATOMS PER MOLECULE IN THE PRESENCE OF A STOICHIOMETRIC EXCESS OF OXYGEN, ABOUT 0.1 TO 4.0% BY WEIGHT OF POTASSIUM PERMANGANATE AS AN OXIDATION CATALYST AND 0.1 TO 4.0% BY WEIGHT ON THE WAX OF SEED MATERIAL DERIVED FROM A PRIOR REACTION, AT A TEMPERATURE IN EXCESS OF 100* C. BUT NOT IN EXCESS OF ABOUT 150* C. FOR A PERIOD OF TIME SUFFICIENT TO EFFECT SUBSTANTIALLY COMPLETE CONVERSION OF THE WAX, THE SAID SEED MATERIAL BEING OXIDIZED MICROCRYSTALLINE WAX PREPARED BY OXIDIZING MICROCRYSTALLINE WAX CONTAINING 34 TO 55 CARON ATOMS PER MOLECULE IN THE PRESENCE OF A STOICHIOMETRIC EXCESS OF OXYGEN AND 0.1 TO 4.0% BY WEIGHT ON THE WAX OF POTASSIUM PERMANGANATE AS AN OXIDATION CATALYST AT A TEMPERATURE IN EXCESS OF 100* C. BUT NOT IN EXCESS OF ABOUT 150* C. FOR PERIOD OF TIME SUFFICIENT TO EFFECT SUBSTANTIALLY COMPLETE CONVERSION OF THE WAX AND TO PRODUCE A PRODUCT HAVING A SAPONIFICATION NUMBER OF WITHIN THE RANGE FROM ABOUT 100 TO ABOUT 500.
Claim 2
Independent Claim
186 words
THE METHOD OF PREPARING ORGANIC ACID COMPOSITIONS WHICH COMPRISES THE STEP OF OXIDIZING MICROCRYSTALLINE WAX CONTAINING 34 TO 55 CARBON ATOMS PER MOLECULE IN THE PRESENCE OF A STOICHIOMETRIC EXCESS OF OXYGEN, ABOUT 0.1 TO 4.0% BY WEIGHT OF POTASSIUM PERMANGANATE AS AN OXIDATION CATALYST AND 0.1 TO 4.0% BY WEIGHT ON THE WAX OF SEED MATERIAL DERIVED FROM A PRIOR REACTION, AT A TEMPERATURE IN EXCESS OF 100* C. BUT NOT IN EXCESS OF ABOUT 150* C. FOR A PERIOD OF TIME SUFFICIENT TO EFFECT SUBSTANTIALLY COMPLETE CONVERSION OF THE WAX, THE SAID SEED MATERIAL BEING OXIDIZED MICROCRYSTALLINE WAX PREPARED BY OXIDIZING MICROCRYSTALLINE WAX CONTAINING 34 TO 55 CARON ATOMS PER MOLECULE IN THE PRESENCE OF A STOICHIOMETRIC EXCESS OF OXYGEN AND 0.1 TO 4.0% BY WEIGHT ON THE WAX OF POTASSIUM PERMANGANATE AS AN OXIDATION CATALYST AT A TEMPERATURE IN EXCESS OF 100* C. BUT NOT IN EXCESS OF ABOUT 150* C. FOR PERIOD OF TIME SUFFICIENT TO EFFECT SUBSTANTIALLY COMPLETE CONVERSION OF THE WAX AND TO PRODUCE A PRODUCT HAVING A SAPONIFICATION NUMBER OF WITHIN THE RANGE FROM ABOUT 100 TO ABOUT 500.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |