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Official data from INPI

PROCESSO PARA CONTROLE DE FLUXO DE LIQUIDO E PARA HOMOGENEIZACAO CONTINUA, E APARELHO PARA CONTROLE CONTINUO DE FLUXO DE LIQUIDO

Em AnáliseInvention Patent

Application data

Number

PI8000635

Type

Invention Patent

Filing

02/05/1979

Publication

-

Progress at the INPI

  1. Filing02/05/79
  2. Publication
  3. Examination11/30/82
  4. Allowance11/16/83
  5. Grant04/24/84
  6. Terminated09/26/89

The patent was granted on 04/24/1984 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ASSOCIATED OCTEL CO LTD E OCTE

Inventors

P. R. (pessoa física)

S. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

09/26/1989

RPI 988

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

03/20/1984

RPI 700

Republicação - classificação IPC

#15.11

02/14/1984

RPI 695

Deferimento

#9.1

11/16/1983

RPI 682

Solicitação de exame técnico

#4.1

11/30/1982

RPI 632

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