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Official data from INPI

PROCESSO E SISTEMA PARA MEDICAO MAIS CONFIAVEL DE PARAMETROS FURO ABAIXO DE FURO DE SONDAGEM E PROCESSO E SISTEMA PARA PROCESSAMENTO DE CANAIS MULTIPLOS

ArquivadaInvention Patent

Application data

Number

PI8501429

Type

Invention Patent

Filing

03/30/1984

Publication

11/26/1985

Progress at the INPI

  1. Filing03/30/84
  2. Publication11/26/85
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 03/30/1984 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: 01/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NL INDUSTRIES INC [US]

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Inventors

C. F. (pessoa física)

R. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

01/19/1988

RPI 900

Publicação do pedido de patente

#3.1

11/26/1985

RPI 788

Pedido de patente depositado

#2.1

06/18/1985

RPI 765

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