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Official data from INPI

APARELHO EM SISTEMA DE TELEMTRIA POR PULSOS DE PRESSAO PARA TRANSMITIR DADOS ATRAVES DE UMA PERFURACAO,APARELHO PARA ATUACAO DE VALVULA,SISTEMA DE TELEMETRIA POR PULSOS DE PRESSAO,PROCESSO PARA TRANSMITIR SINAIS ATRAVES DE UM FLUIDO E PROCESSO PARA ATUAR DISPOSITIVO DE VALVULA

ArquivadaInvention Patent

Application data

Number

PI8503251

Type

Invention Patent

Filing

09/24/1984

Publication

12/09/1986

Progress at the INPI

  1. Filing09/24/84
  2. Publication12/09/86
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 09/24/1984 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NL INDUSTRIES INC [US]

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Inventors

D. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

03/28/1989

RPI 962

Publicação do pedido de patente

#3.1

12/09/1986

RPI 842

Pedido de patente depositado

#2.1

09/10/1985

RPI 777

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