US2695327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimerization of unsaturated hydrocarbons
Assignee: Individual
•
Filing: 1951-06-19
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Granted: 1954-11-23
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Expires: 1971-06-19
Abstract
No abstract record available.
Inventors
- 👤 Ziegler Karl
- 👤 Gellert Hans Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:23
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; H; H04; H04J; H04J1/00; H04J1/18; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
METHOD FOR DIMERIZING UNSATURATED STRAIGHT-CHAIN HYDROCARBONS CONTAINING MORE THAN TWO CARBON ATOMS IN THE MOLECULE, WHICH COMPRISES HEATING SUCH HYDROCARBONS AT A TEMPERATURE OF ABOUT 80 TO 250* C. IN THE PRESENCE OF A DIMERIZATION ACTIVATOR HAVING THE GENERAL FORMULA ME(R)N, IN WHICH ME IS ONE METAL SELECTED FROM THE GROUP CONSISTING OF BERYLLIUM, ALUMINUM, GALLIUM AND INDIUM; R IS AT LEAST ONE SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, MONOVALENT SATURATED ALIPHATIC HYDROCARBON RADICALS, AND MONOVALENT AROMATIC HYDROCARBON RADICALS, AND N IS THE VALENCE OF THE METAL ME, AND RECOVERING A DIMER.
Claim 2
Dependent Claim
94 words
METHOD FOR DIMERIZING UNSATURATED STRAIGHT-CHAIN HYDROCARBONS CONTAINING MORE THAN TWO CARBON ATOMS IN THE MOLECULE, WHICH COMPRISES HEATING SUCH HYDROCARBONS AT A TEMPERATURE OF ABOUT 80 TO 250* C. IN THE PRESENCE OF A DIMERIZATION ACTIVATOR HAVING THE GENERAL FORMULA ME(R)N, IN WHICH ME IS ONE METAL SELECTED FROM THE GROUP CONSISTING OF BERYLLIUM, ALUMINUM, GALLIUM AND INDIUM; R IS AT LEAST ONE SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, MONOVALENT SATURATED ALIPHATIC HYDROCARBON RADICALS, AND MONOVALENT AROMATIC HYDROCARBON RADICALS, AND N IS THE VALENCE OF THE METAL ME, AND RECOVERING A DIMER.
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) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |