US2516848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing butadiene from petroleum and petroleum fractions
Assignee: Electronized Chemicals Corp
•
Filing: 1945-10-09
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Granted: 1950-08-01
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Expires: 1965-10-09
Abstract
No abstract record available.
Inventors
- 👤 Brasch Arno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:28
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/12; C07C11/16; C07C11/167; C07C1/00; C07C1/26; C07C1/30; C07C4/00; C07C5/00; C07C5/32; C07C5/327; C10; C10G; C10G15/00; C10G15/10; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/911; Y10S585/913; Y10S585/929; Y10S585/94
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
57 words
METHOD OF PRODUCING BUTADIENE FROM A SUBSTANCE SELECTED FROM THE GROUP OF PETROLEUM AND FRACTIONS THEREOF COMPRISING CRACKING SAID SUBSTANCE BY COMBINING IT WITH SULPHUR AND BOMBARDING SAID MIXTURE REPEATEDLY DURING A SERIES OF VERY SHORT BOMBARDMENT PERIODS WITH HIGH SPEED ELECTRONS WHEREBY THE SAID SUBSTANCE PRESENT IN SAID MIXTURE IS D ECOMPOSED AND BUTADIENE IS FORMED.
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) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |