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Official data from INPI

APARELHO E FERRAMENTA SUSPENSA POR CABO DE AÇO PARA DETECTAR UMA PRESSÃO EM UM POÇO E PROCESSO.

Em AnáliseInvention Patent

Application data

Number

PI8206944

Type

Invention Patent

Filing

11/30/1982

Publication

10/11/1983

Progress at the INPI

  1. Filing11/30/82
  2. Publication10/11/83
  3. Examination10/22/85
  4. Allowance
  5. Grant
  6. In force

Published on 10/11/1983, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 09/22/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Halliburton Company

US

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Inventors

S. G. (pessoa física)

Technical data

IPC Classification

Priority claims

US

326,540 · 12/02/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

09/22/1987

RPI 883

Republicação - classificação IPC

#15.11

08/25/1987

RPI 879

Republicação - classificação IPC

#15.11

08/18/1987

RPI 878

Solicitação de exame técnico

#4.1

10/22/1985

RPI 783

Publicação do pedido de patente

#3.1

10/11/1983

RPI 677

Pedido de patente depositado

#2.1

01/25/1983

RPI 640

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