Patent US2816942A successfully refreshed from Google Patents.
US2816942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of acetylene
Assignee: Union Oil Company of California
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Filing: 1954-03-29
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Granted: 1957-12-17
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Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 John L Bills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:15
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76; C07C2/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A PROCESS WHEREIN A GASEOUS REACTANT MIXTURE CONSISTING ESSENTIALLY OF OXYGEN AND A HYDROCARBON SELECTED FROM THE CLASS CONSISTING OF METHANE AND NATURAL GAS IS PASSED THROUGH A PREHEATING ZONE TO WHICH HEAT IS SUPPLIED FROM A SOURCE EXTERIOR OF SAID ZONE FOR THE PURPOSE OF HEATING SAID GAS TO AN INCIPIENT REACTION TEMPERATURE WITHOUT REACTION BETWEEN THE COMPONENTS OF SAID MIXTURE TAKING PLACE TO ANY SUBSTANTIAL EXTENT, THE IMPROVEMENT WHICH CONSISTS IN PACKING SAID PREHEATING ZONE WITH A PARTICULATE NON-CATALYTIC REFRACTORY SOLID AND PASSING SAID GAS THERETHROUGH AT A SPACE VELOCITY OF AT LEAST ABOUT 500 VOLUMES PER VOLUME OF FREE SPACE IN SAID PACKED ZONE PER HOUR.
Claim 2
Dependent Claim
110 words
IN A PROCESS WHEREIN A GASEOUS REACTANT MIXTURE CONSISTING ESSENTIALLY OF OXYGEN AND A HYDROCARBON SELECTED FROM THE CLASS CONSISTING OF METHANE AND NATURAL GAS IS PASSED THROUGH A PREHEATING ZONE TO WHICH HEAT IS SUPPLIED FROM A SOURCE EXTERIOR OF SAID ZONE FOR THE PURPOSE OF HEATING SAID GAS TO AN INCIPIENT REACTION TEMPERATURE WITHOUT REACTION BETWEEN THE COMPONENTS OF SAID MIXTURE TAKING PLACE TO ANY SUBSTANTIAL EXTENT, THE IMPROVEMENT WHICH CONSISTS IN PACKING SAID PREHEATING ZONE WITH A PARTICULATE NON-CATALYTIC REFRACTORY SOLID AND PASSING SAID GAS THERETHROUGH AT A SPACE VELOCITY OF AT LEAST ABOUT 500 VOLUMES PER VOLUME OF FREE SPACE IN SAID PACKED ZONE PER HOUR.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |