US2790015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic dehydrogenation of hydrocarbons
Assignee: Houdry Process Corp
•
Filing: 1954-10-13
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Granted: 1957-04-23
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Expires: 1974-10-13
Abstract
No abstract record available.
Inventors
- 👤 Hindin Saul Gerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:53
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/16; C; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/322; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2182431A
Cited
US2406420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |