US3488402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrogenation of hydrocarbons using dehydrogenation-oxidation catalyst system
Assignee: Sinclair Research Inc
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Filing: 1967-05-18
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Granted: 1970-01-06
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Expires: 1987-05-18
Abstract
No abstract record available.
Inventors
- 👤 Glenn O Michaels
- 👤 John H Baudino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:56
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/12; C07C11/16; C07C11/167; C07C11/02; C07C11/08; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3332; C07C5/42; C07C5/48
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) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |