US2426848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cracking hydrocarbons in the presence of granular coke
Assignee: Max B Miller & Co Inc
•
Filing: 1942-06-25
•
Granted: 1947-09-02
•
Expires: 1962-06-25
Abstract
No abstract record available.
Inventors
- 👤 Malcolm H Tuttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:02
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/28; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/911
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1950-09-01 | 1951-03-03 | 1951-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-01 | 1955-03-03 | 1955-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-01 | 1959-03-03 | 1959-09-02 | $7700.00 | Window Closed / Lapsed |