US3414632A
Expired / Lapsed
US
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Process and apparatus for cracking hydrocarbons
Assignee: BASF SE
•
Filing: 1965-05-14
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Granted: 1968-12-03
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Expires: 1985-05-14
Abstract
No abstract record available.
Inventors
- 👤 Buschmann Karl
- 👤 Meyer Hermann
- 👤 Schweitzer Armin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:24
CPC Classifications
F; F28; F28F; F28F13/00; F28F13/06; C; C07; C07C; C07C4/00; C07C4/02; C07C4/04; C10; C10G; C10G9/00; C10G9/002; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/949; Y10S585/95
Claims Analysis
Total Claims: 0
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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) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |