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Official data from INPI

HIDROPROCESSO DE DOIS ESTÁGIOS INTERLIGADOS DE PERTO PARA TRATAMENTO DE ÓLEO DE XISTO CONTENDO SÓLIDOS DE XISTO E METAIS.

ArquivadaInvention Patent
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Application data

Number

PI8302840

Type

Invention Patent

Filing

05/30/1983

Publication

04/17/1984
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Progress at the INPI

  1. Filing05/30/83
  2. Publication04/17/84
  3. Abandoned07/29/86
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 03/15/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Chevron Research Company.

US

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Inventors

J. R. (pessoa física)

R. T. (pessoa física)

S. G. (pessoa física)

Technical data

IPC Classification

C10G 69/02

Priority claims

US

392.906 · 06/28/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

03/15/1988

RPI 908

Republicação - classificação IPC

#15.11

08/25/1987

RPI 879

Republicação - classificação IPC

#15.11

08/18/1987

RPI 878

Exigência - art. 36 da LPI

#6.1

08/11/1987

RPI 877

Solicitação de exame técnico

#4.1

07/29/1986

RPI 823

Publicação do pedido de patente

#3.1

04/17/1984

RPI 704

Pedido de patente depositado

#2.1

07/12/1983

RPI 664

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