US3158559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for isomerization of olefinic hydrocarbons
Assignee: Texaco Inc
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Filing: 1961-07-12
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Granted: 1964-11-24
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Expires: 1981-07-12
Abstract
No abstract record available.
Inventors
- 👤 Jr James M Caffrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:22
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/23; C07C5/25; Y; Y10; Y10S; Y10S204/00; Y10S204/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A PROCESS FOR THE DOUBLE BOND ISOMERIZATION OF 1-OLEFINS HAVING MORE THAN 3 CARBON ATOMS IN THE MOLECULE COMPRISING ADSORBING SAID 1-OLEFIN ON A MOLECULAR SIEVE ADSORBENT, GAMMA IRRADIATING SAID ADSORBED 1-OLEFIN WITH NOT LESS THAN ABOUT .5X10**6 ROENTGENS, DESORBING THE MOLECULAR SIEVE ADSORBENT AND RECOVERING THE RESULTANT PRODUCT.
Claim 2
Dependent Claim
49 words
A PROCESS FOR THE DOUBLE BOND ISOMERIZATION OF 1-OLEFINS HAVING MORE THAN 3 CARBON ATOMS IN THE MOLECULE COMPRISING ADSORBING SAID 1-OLEFIN ON A MOLECULAR SIEVE ADSORBENT, GAMMA IRRADIATING SAID ADSORBED 1-OLEFIN WITH NOT LESS THAN ABOUT .5X10**6 ROENTGENS, DESORBING THE MOLECULAR SIEVE ADSORBENT AND RECOVERING THE RESULTANT PRODUCT.
References Cited (Backward Citations)
US2956941A
Cited
GB842136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |