US2674634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation of polyunsaturated compounds
Assignee: Shell Development Co
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Filing: 1950-08-05
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Granted: 1954-04-06
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Expires: 1970-08-05
Abstract
No abstract record available.
Inventors
- 👤 Bernard S Greensfelder
- 👤 Robert J Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:48
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; C07C5/05; B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/28; B01J21/00; B01J21/12; B01J37/00; B01J37/20; C07C2521/00; C07C2521/02; C07C2521/04; C07C2527/00; C07C2527/02; C07C2527/04; C07C2527/047; C07C2527/051
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PROCESS FOR PRODUCING AN OLEFINIC COMPOUND FROM A MORE HIGHLY UNSATURATED COMPOUND HAVING A PLURALITY OF PAIRS OF CARBON ATOMS DIRECTLY LINKED BY MULTIPLE BONDS IN WHICH NO CARBON ATOM INTERVENING BETWEEN SAID MULTIPLE BONDS IS DIRECTLY ATTACHED TO MORE THAN THREE CARBON ATOMS, SAID HIGHLY UNSATURATED COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF POLYOLEFINIC, OLEFINIC-ACETYLENIC AND POLYACETYLENIC COMPOUNDS WHICH COMPRISES REACTING SAID MORE HIGHLY UNSATURATED COMPOUND WITH HYDROGEN IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF MOLYBDENUM SULFIDE HAVING AN ATOMIC RATIO OF SULFUR TO MOLYBDENUM OF 2:1 AS THE SOLE EFFECTIVE CATALYST.
Claim 2
Dependent Claim
97 words
A PROCESS FOR PRODUCING AN OLEFINIC COMPOUND FROM A MORE HIGHLY UNSATURATED COMPOUND HAVING A PLURALITY OF PAIRS OF CARBON ATOMS DIRECTLY LINKED BY MULTIPLE BONDS IN WHICH NO CARBON ATOM INTERVENING BETWEEN SAID MULTIPLE BONDS IS DIRECTLY ATTACHED TO MORE THAN THREE CARBON ATOMS, SAID HIGHLY UNSATURATED COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF POLYOLEFINIC, OLEFINIC-ACETYLENIC AND POLYACETYLENIC COMPOUNDS WHICH COMPRISES REACTING SAID MORE HIGHLY UNSATURATED COMPOUND WITH HYDROGEN IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF MOLYBDENUM SULFIDE HAVING AN ATOMIC RATIO OF SULFUR TO MOLYBDENUM OF 2:1 AS THE SOLE EFFECTIVE CATALYST.
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) | 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 |