US2812320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for counteracting sulfurous odors in a phosphorus sulfide-hydrocarbon reaction product
Assignee: Sinclair Refining Co
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Filing: 1956-01-04
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Granted: 1957-11-05
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Expires: 1976-01-04
Abstract
No abstract record available.
Inventors
- 👤 Leonard E Beare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:30
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE METHOD OF COUNTERACTING OBJECTTIOABLE SULFUROUS ODORS OF A STEAM-TREATED UNNEUTRALIZED OIL-SOLUBLE PHOSPHORUS SULFIDE-HYDROCARBON REACTION PRODUCT PREPARED FROM A HYDROCARBON OIL OF LUBRICATING VISCOSITY AND HAVING A MOLECULAR WEIGHT GREATER THAN ABOUT 500 WHICH COMPRISES HEATING SAID PRODUCT IN THE PRESENCE OF A MINOR AMOUNT OF TRIOXANE AT A TEMPERATURE FROM ABOUT 125 TO 175*F., THE AMOUNT OF SAID TRIOXANE BEING SUFFICIENT TO SUBSTANTIALLY COUNTERACT SAID ODORS.
Claim 2
Independent Claim
67 words
THE METHOD OF COUNTERACTING OBJECTTIOABLE SULFUROUS ODORS OF A STEAM-TREATED UNNEUTRALIZED OIL-SOLUBLE PHOSPHORUS SULFIDE-HYDROCARBON REACTION PRODUCT PREPARED FROM A HYDROCARBON OIL OF LUBRICATING VISCOSITY AND HAVING A MOLECULAR WEIGHT GREATER THAN ABOUT 500 WHICH COMPRISES HEATING SAID PRODUCT IN THE PRESENCE OF A MINOR AMOUNT OF TRIOXANE AT A TEMPERATURE FROM ABOUT 125 TO 175*F., THE AMOUNT OF SAID TRIOXANE BEING SUFFICIENT TO SUBSTANTIALLY COUNTERACT SAID ODORS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |