US2701260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of unsaturated nitriles by selective oxidation
Assignee: Eastman Kodak Co
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Filing: 1950-10-19
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Granted: 1955-02-01
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Expires: 1970-10-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Hugh J Hagemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:53
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS OF CONVERTING A SATURATED LOWER ALIPHATIC NITRILE TO AN UNSATURATED NITRIL HAVING THE SAME NUMBER OF CARBON ATOMS WHICH COMPRISES PREHEATING SAID STAURATED NITRILE, CONTACTING SAID SATURATED NITRILE WITH A NOBEL METAL CATALYST COMPRISED OF A METAL FROM THE GROUP CONSISTING OF SILVER, COPPER, GOLD, PLATINUM, PALLADIUM, RUTHENIUM AND IRIDIUM AND AT A REACTION TEMPERATURE BETWEEN 300-800*C., SAID CONTACTING WITH THE CATALYST TALKING PLACE IN THE PRESENCE OF OXYGEN AS A PRIMARY REACTANT WHEREBY A SUBSTANTIAL PORTION OF THE SATURATED NITRILE IS OXIDIZED TO AN UNSATURATED NITRILE.
Claim 2
Dependent Claim
89 words
A PROCESS OF CONVERTING A SATURATED LOWER ALIPHATIC NITRILE TO AN UNSATURATED NITRIL HAVING THE SAME NUMBER OF CARBON ATOMS WHICH COMPRISES PREHEATING SAID STAURATED NITRILE, CONTACTING SAID SATURATED NITRILE WITH A NOBEL METAL CATALYST COMPRISED OF A METAL FROM THE GROUP CONSISTING OF SILVER, COPPER, GOLD, PLATINUM, PALLADIUM, RUTHENIUM AND IRIDIUM AND AT A REACTION TEMPERATURE BETWEEN 300-800*C., SAID CONTACTING WITH THE CATALYST TALKING PLACE IN THE PRESENCE OF OXYGEN AS A PRIMARY REACTANT WHEREBY A SUBSTANTIAL PORTION OF THE SATURATED NITRILE IS OXIDIZED TO AN UNSATURATED NITRILE.
References Cited (Backward Citations)
FR790262A
Cited
US2384737A
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US2385552A
Cited
US2452505A
Cited
US2412437A
Cited
US2499055A
Cited
US2445693A
Cited
US2481826A
Cited
US2554484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |