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Official data from INPI

BARRA APERFEIÇOADA DETECTORA DE CURVATURA DE TUBULAÇÃO PARA MEDIR ALTERAÇÕES NA DIREÇÃO DA TUBULAÇÃO E PARA CALIBRAGEM DE TUBULAÇÃO

ArquivadaInvention Patent

Application data

Number

PI9000710

Type

Invention Patent

Filing

02/16/1990

Publication

01/22/1991

Progress at the INPI

  1. Filing02/16/90
  2. Publication01/22/91
  3. Abandoned06/25/91
  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: 07/19/1994. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TDW Delaware, Inc

US

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Inventors

D. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

315.795 · 02/27/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

07/19/1994

RPI 1233

Exigência - art. 36 da LPI

#6.1

11/30/1993

RPI 1200

Solicitação de exame técnico

#4.1

06/25/1991

RPI 1073

Publicação do pedido de patente

#3.1

01/22/1991

RPI 1051

Pedido de patente depositado

#2.1

05/29/1990

RPI 1020

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