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Official data from INPI

APARELHO DE VÁLVULA REFECHÁVEL PARA FUNDO DE POÇO, VÁLVULA DE CIRCULAÇÃO, COLUNA DE TESTE DA PRODUÇÃO DE POÇO E PROCESSO DE ENSAIO DE PRODUÇÃO.

ArquivadaInvention Patent

Application data

Number

PI8302039

Type

Invention Patent

Filing

04/20/1983

Publication

12/27/1983

Progress at the INPI

  1. Filing04/20/83
  2. Publication12/27/83
  3. Abandoned02/18/86
  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.

Talk to a specialist

Latest action published by the INPI: 10/25/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Halliburton Company

US

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Inventors

M. E. (pessoa física)

Technical data

IPC Classification

Priority claims

US

370,518 · 04/21/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

10/25/1988

RPI 940

6.2

12/08/1987

RPI 894

Solicitação de exame técnico

#4.1

02/18/1986

RPI 800

Publicação do pedido de patente

#3.1

12/27/1983

RPI 688

Pedido de patente depositado

#2.1

06/07/1983

RPI 659

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