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Official data from INPI

SOLUCAO AQUOSA RECUPERADORA DE OLEO,E,PROCESSO PARA RECUPERAR OLEO CRU DE UMA FORMACAO GEOLOGICA

Em AnáliseInvention Patent

Application data

Number

PI8307206

Type

Invention Patent

Filing

12/29/1982

Publication

08/07/1984

Progress at the INPI

Under appeal
  1. Filing12/29/82
  2. Publication08/07/84
  3. Examination09/16/86
  4. Refused03/13/90
  5. Grant
  6. In force

The application was refused by the INPI on 03/13/1990. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 11/18/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STAUFFER CHEMICAL CO [US]

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Inventors

B. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de certificado de adição de invenção

#5.1

11/18/1986

RPI 839

Solicitação de exame técnico

#4.1

09/16/1986

RPI 830

Republicação - classificação IPC

#15.11

11/27/1984

RPI 736

Publicação do pedido de patente

#3.1

08/07/1984

RPI 720

Pedido de patente depositado

#2.1

03/13/1984

RPI 699

Indeferimento

#9.2

03/13/1990

RPI 1009

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