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Official data from INPI

VÁLVULA DE CIRCULAÇÃO ADAPTADA PARA SER SUSPENSA EM UMA CAVIDADE DE POÇO EM UMA LINHA DE TUBULAÇÃO

PublicadaInvention Patent

Application data

Number

PI8803712

Type

Invention Patent

Filing

07/26/1988

Publication

02/14/1989

Progress at the INPI

  1. Filing07/26/88
  2. Publication02/14/89
  3. Abandoned02/13/91
  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: 02/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Halliburton Company

US

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Inventors

P. R. (pessoa física)

Technical data

IPC Classification

Priority claims

US

078,484 · 07/27/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/14/1989

RPI 956

Pedido de patente depositado

#2.1

12/27/1988

RPI 949

Arquivamento - Art. 36 §1° da LPI

#11.2

03/15/1994

RPI 1215

6.2

07/20/1993

RPI 1181

Solicitação de exame técnico

#4.1

02/13/1991

RPI 1054

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