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Official data from INPI

PASTAS FLUÍDAS DE CIMENTO PARA POÇO DE PETRÓLEO COM BOM CONTROLE DE PERDA DE FLUÍDO E PROCESSO PARA CIMENTAÇÃO DE ANEL NA PERFURAÇÃO DE POÇO DE PETRÓLEO

PublicadaInvention Patent

Application data

Number

PI8805709

Type

Invention Patent

Filing

10/28/1988

Publication

07/18/1989

Progress at the INPI

  1. Filing10/28/88
  2. Publication07/18/89
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 10/28/1988 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pumptech N.V.

BE

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Inventors

B. B. (pessoa física)

J. B. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

87 15334 · 11/03/1987

FR

88 05431 · 04/21/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/18/1989

RPI 978

Pedido de patente depositado

#2.1

03/14/1989

RPI 960

Arquivamento - Art. 33 da LPI

#11.1

11/26/1991

RPI 1095

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