Official data from INPI

OBTURADOR HIDRÁULICO RECUPERÁVEL PARA POÇOS DE PETRÓLEO

PublicadaInvention Patent

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Application data

Number

PI8500700

Type

Invention Patent

Filing

02/14/1985

Publication

09/16/1986

View on INPI

Progress at the INPI

Filing02/14/85
Publication09/16/86
Examination
Allowance
Grant
In force

The application was published in the RPI gazette on 09/16/1986 and is now open to any interested party. It moves on to technical examination at the INPI.

Latest action published by the INPI: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Baker Oil Tools, Inc.

Inventors

A. L. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

663.032 · 10/19/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

05/31/1988

RPI 919

Publicação do pedido de patente

#3.1

09/16/1986

RPI 830

Pedido de patente depositado

#2.1

05/07/1985

RPI 759

From the same holder

OBTURADOR DE ALTA TEMPERATURA PARA TUBULAÇÕES DE POÇO E MECANISMO DE RETENÇÃO DE DESLIZAMENTO PARA OBTURADOR DE POÇO SUBTERRÂNEO CONDUTO TUBULAR ISOLADO, DE PAREDES CONCÊNTRICAS PARA A FORMAÇÃO DE UMA COLUNA TUBULAR EM UM POÇO SUBTERRÂNEO.JUNTA DE EXPANSÃO

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