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US2857436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alcohol deodorization by contact with siliceous material and iron
Assignee: Shell Development Co
•
Filing: 1957-02-25
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Granted: 1958-10-21
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Expires: 1977-02-25
Abstract
No abstract record available.
Inventors
- 👤 Mackinder Richard
- 👤 Kenzie Ralph George
- 👤 Tiso Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:38
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/74; C07C29/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS FOR IMPROVING THE ODOR CHARACTERISTICS OF A LOWER ALIPHATIC ALCOHOL WHICH IS PREPARED BY THE CATALYTIC HYDRATION OF AN OLEFIN, WHICH PROCESS COMPRISES INTIMATELY CONTACTING ONLY THE LIQUID MALODOROUS ALCOHOL WITH A FINELY DIVIDED SILICEOUS MATERIAL AND AN IRON METAL IN A PHYSICAL FORM HAVING A HIGH SURFACE AREA TO WEIGHT RATIO.
Claim 2
Dependent Claim
54 words
A PROCESS FOR IMPROVING THE ODOR CHARACTERISTICS OF A LOWER ALIPHATIC ALCOHOL WHICH IS PREPARED BY THE CATALYTIC HYDRATION OF AN OLEFIN, WHICH PROCESS COMPRISES INTIMATELY CONTACTING ONLY THE LIQUID MALODOROUS ALCOHOL WITH A FINELY DIVIDED SILICEOUS MATERIAL AND AN IRON METAL IN A PHYSICAL FORM HAVING A HIGH SURFACE AREA TO WEIGHT RATIO.
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) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |