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Official data from INPI

PROCESSO PARA RUPTURA DE CÉLULA, SOLUÇÃO DE POLISSACARÍDEO APROPRIADA PARA RECUPERAÇÃO MELHORADA DE ÓLEO E PROCESSO PARA DESLOCAMENTO DE FLUIDO ATRAVÉS DE UM POÇO

ArquivadaInvention Patent

Application data

Number

PI8206354

Type

Invention Patent

Filing

11/01/1982

Publication

09/27/1983

Progress at the INPI

  1. Filing11/01/82
  2. Publication09/27/83
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 11/01/1982 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/07/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

D. J. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8133059 · 11/03/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

01/07/1986

RPI 794

Publicação do pedido de patente

#3.1

09/27/1983

RPI 675

Pedido de patente depositado

#2.1

12/21/1982

RPI 635

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