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Official data from INPI

COMPOSIÇÕES DE CIMENTO PARA CIMENTAR O POÇO DE GÁS OU ÓLEO, COMPOSIÇÃO DE GERAÇÃO DE GÁS E PROCESSO PARA CIMENTAR UM ANEL ENTRE UMA CARCAÇA DE POÇO E A PERFURAÇÃO.

ArquivadaInvention Patent

Application data

Number

PI8401948

Type

Invention Patent

Filing

04/26/1984

Publication

12/04/1984

Progress at the INPI

  1. Filing04/26/84
  2. Publication12/04/84
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 04/26/1984 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: 04/14/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Halliburton Company

US

See this company's full portfolio

Inventors

D. S. (pessoa física)

US

J. C. (pessoa física)

US

J. B. (pessoa física)

US

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

04/14/1987

RPI 860

Publicação do pedido de patente

#3.1

12/04/1984

RPI 737

Pedido de patente depositado

#2.1

07/03/1984

RPI 715

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C04B 13/22; C01B 21/02; C04B 13/20; C04B 13/26.

03/27/2018

RPI 2464

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