US2910431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroforming and apparatus therefor
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-07-20
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Granted: 1959-10-27
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Expires: 1976-07-20
Abstract
No abstract record available.
Inventors
- 👤 Richard W Sage
- 👤 Donald D Maclaren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:08
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/10; C10G35/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
127 words
IN THE HYDROFORMING OF NAPHTHA IN THE PRESENCE OF A HYDROFORMING CATALYST UNDER HYDROFORMING CONDITIONS OF TEMPERATURE, PRESSURE AND REACTION TIME, THE IMPROVEMENT WHICH COMPRISES INTRODUCING A NAPHTHA AND HYDROGEN, PREHEATED TO THERMAL CRACKING TEMPERATURES, INTO A HYDROFORMING ZONE, CAUSING THE SAID NAPHTHA TO PASS RAPIDLY IN THE FORM OF A PLURALITY OF CONFINED STREAMS THROUGH A BED OF FLUIDIZED HYDROFORMING CATALYST IN INDIRECT HEAT EXCHANGE RELATIONSHIP WITH SAID BED WHEREBY THE SAID NAPHTHA AND HYDROGEN ARE COOLED AND THE BED OF CATALYST ACQUIRES HEAT, WITHDRAWING SAID COOLED NAPHTHA AND HYDROGEN FROM SAID STREAMS AND CHARGING THEM INTO A SPACE BELOW SAID BED, CAUSING THE SAID NAPHTHA AND HYDROGEN TO FLOW UPWARDLY THROUGH SAID BED OF CATALYST AND RECOVERING HYDROFORMED NAPHTHA FOR PRODUCT FROM SAID REACTION ZONE.
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) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |