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US3763257A Expired / Lapsed US ⏱️ 0.0 years remaining

Dehydrogenation process

Assignee: BP Chemicals Ltd
•
Filing: 1970-07-01
•
Granted: 1973-10-02
•
Expires: 1990-07-01
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Abstract

Abstract THE INVENTION CONSISTS OF A PROCESS FOR THE PRODUCTIN OF A CATALYST SUITABLE FOR USE IN THE DEHYDROGENATION OF HYDROCARBONS, WHICH COMPRISES IMPREGNATING A SUPPORT WITH A SOLUTION OF (1) A COMPOUND OF MOLYBDENUM WHICH DECOMPOSES ON HEATING TO FORM AN OXIDE, A SOLUTION OF (2) A BASIC COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI ALKALINE EARTH METALS AND A SOLUTION OF (3) A COMPOUND OF A METAL SELECTED FROM GROUPS IB-V, VII AND VIII OF THE PERIODIC TABLE, CHROMIUM, TUNGSTEN AND URANIUM AND DRYING THE IMPREGNATED MATERIAL. ALSO A PROCESS FOR THE DEHYDROGENATION OF THE HYDROCARBON BY CONTACTING WITH THE CATALYST, IN THE PRESENCE OF A HYDROGEN ACCEPTOR SUCH AS ETHYLENE, PROPLENE OR CARBON DIOXIDE.

Inventors

  • 👤 C Bradshaw
  • 👤 P Longstaff

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 13:20
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/887; B01J23/8872; B01J23/16; B01J23/32; B01J23/36; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/652; B01J23/6525; C; C07; C07C; C07C5/00; C07C5/42; C07C5/50; C07C5/52; C07C2523/00; C07C2523/02; C07C2523/04; C07C2523/16; C07C2523/24; C07C2523/70; C07C2523/76; C07C2523/84; C07C2523/889; C07C2527/00; C07C2527/24; C07C2527/25; C07C2531/00; C07C2531/02; C07C2531/04; C07C2531/16; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906

Claims Analysis

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-01 1977-04-02 1977-10-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-01 1981-04-02 1981-10-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-01 1985-04-02 1985-10-02 $7700.00 Window Closed / Lapsed

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