US2882232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improving the odor of specialty naphthas
Assignee: Pure Oil Co
•
Filing: 1955-11-14
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Granted: 1959-04-14
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Expires: 1975-11-14
Abstract
No abstract record available.
Inventors
- 👤 Robert M Haines
- 👤 John W Walsh
- 👤 Weldon G Annable
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:29
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/228; C10L1/2286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
THE METHOD OF PREPARING A SPECIALTY NAPHTHA OF SATISFACTORY ODOR FROM REFINED STRAIGHT-RUN PETROLEUM NAPHTHA OF DISAGREEABLE ODOR, HAVING A SULFUR CONTENT SUFFICIENTLY LOW TO PASS THE "DOCTOR TEST" AND DISTILLATION-CORROSION TEST", WHICH CONSISTS IN BLENDING WITH SAID NAPHTHA AT AMBIENT TEMPERATURE BETWEEN 1 AND 90 PART PER MILLION OF AN ORGANIC NITRILE HAVING NOT MORE THAN 12 CARBON ATOMS PER MOLECULE, THE AMOUNT OF NITRILE BEING SUFFICIENT TO IMPROVE THE DISAGREEABLE AND UNPLEASANT ODOR OF SIAD NAPHTHA.
Claim 2
Independent Claim
78 words
THE METHOD OF PREPARING A SPECIALTY NAPHTHA OF SATISFACTORY ODOR FROM REFINED STRAIGHT-RUN PETROLEUM NAPHTHA OF DISAGREEABLE ODOR, HAVING A SULFUR CONTENT SUFFICIENTLY LOW TO PASS THE "DOCTOR TEST" AND DISTILLATION-CORROSION TEST", WHICH CONSISTS IN BLENDING WITH SAID NAPHTHA AT AMBIENT TEMPERATURE BETWEEN 1 AND 90 PART PER MILLION OF AN ORGANIC NITRILE HAVING NOT MORE THAN 12 CARBON ATOMS PER MOLECULE, THE AMOUNT OF NITRILE BEING SUFFICIENT TO IMPROVE THE DISAGREEABLE AND UNPLEASANT ODOR OF SIAD NAPHTHA.
References Cited (Backward Citations)
US2235936A
Cited
US2393212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |