US2985695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cracking of hydrocarbons
Assignee: BASF SE
•
Filing: 1958-01-10
•
Granted: 1961-05-23
•
Expires: 1978-01-10
Abstract
No abstract record available.
Inventors
- 👤 Platz Rolf
- 👤 Kroeper Hugo
- 👤 Dorsch Dieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:19
CPC Classifications
C; C07; C07C; C07C4/00; C07C4/02; C07C4/025; C07C4/04; C10; C10G; C10G9/00; C10G9/34; C10G9/36; C10G9/38; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/903; Y10S585/949; Y10S585/95; Y10S585/953
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PROCESS FOR THE PRODUCTION OF AN UNSATURATED HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF ACETYLENE, ETHYLENE, PROPYLENE, BUTYLENE AND BUTADIENE WHICH COMPRISES CRACKING A LIQUID HYDROCARBON IN AN OXYGEN-SUPPORTED FLAME WHICH BURNS IN A REACTION ZONE BENEATH THE SURFACE OF A BODY OF SAID LIQUID HYDROCARBON, CONTINUOUSLY SUPPLYING FRESH LIQUID HYDROCARBON TO SAID BODY, CONTINUOUSLY REMOVING A PORTION OF SAID LIQUID HYDROCARBON FROM SAID BODY AND RETURNING A PORTION THEREOF TO THE REACTION ZONE IN AN ATOMIZED CONDITION, RETURNING THE REMAINING PORTION OF THE RECYCLED HYDROCARBON TO THE REACTION ZONE AS AN ANNULAR STREAM WHICH SUBSTANTIALLY SURROUNDS SAID ATOMIZED HYDROCARBON, PASSING OXYGEN INTO
Claim 2
Dependent Claim
104 words
A PROCESS FOR THE PRODUCTION OF AN UNSATURATED HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF ACETYLENE, ETHYLENE, PROPYLENE, BUTYLENE AND BUTADIENE WHICH COMPRISES CRACKING A LIQUID HYDROCARBON IN AN OXYGEN-SUPPORTED FLAME WHICH BURNS IN A REACTION ZONE BENEATH THE SURFACE OF A BODY OF SAID LIQUID HYDROCARBON, CONTINUOUSLY SUPPLYING FRESH LIQUID HYDROCARBON TO SAID BODY, CONTINUOUSLY REMOVING A PORTION OF SAID LIQUID HYDROCARBON FROM SAID BODY AND RETURNING A PORTION THEREOF TO THE REACTION ZONE IN AN ATOMIZED CONDITION, RETURNING THE REMAINING PORTION OF THE RECYCLED HYDROCARBON TO THE REACTION ZONE AS AN ANNULAR STREAM WHICH SUBSTANTIALLY SURROUNDS SAID ATOMIZED HYDROCARBON, PASSING OXYGEN INTO
References Cited (Backward Citations)
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Cited
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Cited
US2773349A
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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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |