Patent US2698349A successfully refreshed from Google Patents.
US2698349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acetylene manufacture
Assignee: Union Oil Company of California
•
Filing: 1949-09-09
•
Granted: 1954-12-28
•
Expires: 1969-09-09
Abstract
No abstract record available.
Inventors
- 👤 John L Bills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:34
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76; C07C2/78; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS OF PRODUCING ACETYLENE WHICH COMPRISES PASSING A REACTANT GAS MIXTURE CONTAINING FROM ABOUT 21 TO ABOUT 30 PERCENT BY VOLUME OF METHANE AND FROM ABOUT 79 TO ABOUT 70 PER CENT BY VOLUME OF AIR THROUGH A REACTION ZONE MAINTAINED AT AN ACETYLENE-PRODUCING TEMPERATURE BETWEEN ABOUT 1100* C. AND ABOUT 1500* C. AT SUCH A RATE THAT THE RESIDENCE TIME OF SAID REACTANT GAS MIXTURE WITHIN SAID REACTION ZONE IS BETWEEN ABOUT 0.005 AND ABOUT 0.02 SECOND, AND SIMULTANEOUSLY INTRODUCING A GAS CONSISTING OF HYDROGEN INTO SAID REACTION ZONE AT SUCH POINT ALONG THE LENGTH THEREOF AND IN SUCH MANNER THAT SAID HYDROGEN IS SUBSTANTIALLY NON-TURBULENT-
Claim 2
Dependent Claim
108 words
A PROCESS OF PRODUCING ACETYLENE WHICH COMPRISES PASSING A REACTANT GAS MIXTURE CONTAINING FROM ABOUT 21 TO ABOUT 30 PERCENT BY VOLUME OF METHANE AND FROM ABOUT 79 TO ABOUT 70 PER CENT BY VOLUME OF AIR THROUGH A REACTION ZONE MAINTAINED AT AN ACETYLENE-PRODUCING TEMPERATURE BETWEEN ABOUT 1100* C. AND ABOUT 1500* C. AT SUCH A RATE THAT THE RESIDENCE TIME OF SAID REACTANT GAS MIXTURE WITHIN SAID REACTION ZONE IS BETWEEN ABOUT 0.005 AND ABOUT 0.02 SECOND, AND SIMULTANEOUSLY INTRODUCING A GAS CONSISTING OF HYDROGEN INTO SAID REACTION ZONE AT SUCH POINT ALONG THE LENGTH THEREOF AND IN SUCH MANNER THAT SAID HYDROGEN IS SUBSTANTIALLY NON-TURBULENT-
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) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |