US3009871A
Expired / Lapsed
US
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Catalytic process for dehydrogenation of hydrocarbons
Assignee: Vitro Corp of America
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Filing: 1956-05-16
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Granted: 1961-11-21
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Expires: 1976-05-16
Abstract
No abstract record available.
Inventors
- 👤 Vasili I Komarewsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:40
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/322; B; B01; B01J; B01J23/00; B01J23/10; C07C5/373; C07C5/393; C07C5/41; C07C5/412; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
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) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |