Patent US3595932A successfully refreshed from Google Patents.
US3595932A
Expired / Lapsed
US
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Method of producing benzene and its low-molecular weight homologs
Assignee: Individual
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Filing: 1968-08-20
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Granted: 1971-07-27
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Expires: 1988-08-20
Abstract
Abstract ALKYL BENZENES ARE DEALKYLATED WITH STEAM AT A TEMPERATURE OF 38-600*C. IN THE PRESENCE OF A CATALYST, THE CATALYST IS A BINARY STSTEM CONSISTING OF PLATINUM, PALLADIUM, RODIUM, IRIDIUM, RUTHENIUM OR MIXTURES THEREOF, DEPOSITED IN AN AMOUNT OF 0.05 TO 5, BY WEIGHT ON A CARRIER CONSISTING OF ALUMINUM OXIDE, ALUMINOSILICATE, A COMBINATION OF ALUMINUM OXIDE WITH OXIDES OF NICKEL OR ALUMINUM OXIDE WITH OXIDES OF COBALT.
Inventors
- 👤 Gdal Nossonovich Maslyansky
- 👤 Georgy Lazarevich Rabinovich
- 👤 Nina Khrisanfovna Avtonomova
- 👤 Kira Lvovna Brisker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:46
CPC Classifications
C; C07; C07C; C07C4/00; C07C4/08; C07C4/12; C07C4/14; C07C4/20; B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/70; B01J23/74; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/12; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/44; C07C2523/46; C07C2523/70; C07C2523/74; C07C2523/75; C07C2523/755; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
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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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |