US2495665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing acetylene
Assignee: Danciger Oil and Refining Co
•
Filing: 1944-06-15
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Granted: 1950-01-24
•
Expires: 1964-06-15
Abstract
No abstract record available.
Inventors
- 👤 Spring Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:04
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/22; C07C11/24; C10; C10G; C10G9/00; C10G9/34; C10G9/36; C10G9/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
AN APPARATUS FOR PRODUCING ACETYLENE BY INCOMPLETE COMBUSTION OF HYDROCARBONS WHICH COMPRISES A FURNACE, A REACTION CHAMBER OF REFRACTORY CERAMIC MATERIAL POSITIONED VERTICALLY WITHIN AND OPENING THROUGH SAID FURNACE, A GAS LINE AND AIR LINE CONNECTED WITH THE UPPER END OF THE CHAMBER, SAID GAS LINE HAVING A PLURALITY OF SMALL OPENINGS INTO SAID CHAMBER, MEANS CONSTRUCTED AND ARRANGED TO MIX THE GAS AND AIR AS THEY ENTER THE UPPER END OF THE REACTION CHAMBER, A TANK POSITIONED EXTERIALLY OF THE FURNACE AND BELOW THE SAID REACTION CHAMBER THEREON, THE LOWER END OF SAID CHAMBER BEING IN OPEN COMMUNICATION WITH SAID TANK, DISTRIBUTING MEANS IN SAID TANK FOR PROVIDING CONTACT BETWEEN GASES PASSING FROM THE LOWER END OF SAID CHAMBER TO
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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) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |