Patent US3590090A successfully refreshed from Google Patents.
US3590090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrogenation of organic compounds
Assignee: Trane Co
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Filing: 1968-12-02
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Granted: 1971-06-29
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Expires: 1988-12-02
Abstract
Abstract ORGANIC COMPOUNDS HAVING A DEHYDROGENATABLE CARBONCARBON BOND ARE DEHYDROGENATED IN THE VAPOR PHASE BY CONTACT WITH A SULFUR OXIDE AND OXYGEN, THE OXYGEN BEING PRESENT IN AN AMOUNT INSUFFICIENT TO CAUSE SUBSTANTIAL BURNING OF THE ORGANIC COMPOUND, THE DEHYDROGENATION BEING PREFERABLY CARRIED OUT IN THE PRESENCE OF ALOW SURFACE AREA CATALYST AND AN INERT DILUENT.
Inventors
- 👤 Abraham D Cohen
- 👤 Israel S Pasternak
- 👤 Noel J Gaspar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:29
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/54; C07C5/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |