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Official data from INPI

PROCESSO PARA O CRAQUEAMENTO CATALITICO FLUIDO DE ÓLEO MINERAL E APARELHO PARA A SEPARAÇÃO DE PARTÍCULAS DE CATALISADOR DE UMA CORRENTE GASOSA.

ConcedidaInvention Patent

Application data

Number

PI8303921

Type

Invention Patent

Filing

07/21/1983

Publication

02/28/1984

Progress at the INPI

  1. Filing07/21/83
  2. Publication02/28/84
  3. Examination04/15/86
  4. Allowance06/21/88
  5. Grant01/10/89
  6. Terminated02/18/92

The patent was granted on 01/10/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. C. (pessoa física)

US

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Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

US

400.843 · 07/22/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/10/1989

RPI 951

Notificação para pagamento de retribuição

#13.1

10/25/1988

RPI 940

Deferimento

#9.1

06/21/1988

RPI 922

Conhecimento de parecer técnico

#7.1

01/12/1988

RPI 899

Pedido de certificado de adição de invenção

#5.1

08/12/1986

RPI 825

Solicitação de exame técnico

#4.1

04/15/1986

RPI 808

Publicação do pedido de patente

#3.1

02/28/1984

RPI 697

Pedido de patente depositado

#2.1

09/27/1983

RPI 675

Anuidade - prazo legal encerrado

#18.2

02/18/1992

RPI 1107

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