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Official data from INPI

COMPOSIÇÃO PARA CIMENTAÇÃO UTILIZÁVEL EM POÇOS DE PETRÓLEO, GÁS E ÁGUA, PROCESSO PARA CIMENTAR UM CONDUTO EM UM FURO DE POÇO E AGENTE CONTRA PERDA DE FLUÍDO DISPERSANTE.

ArquivadaInvention Patent

Application data

Number

PI8502557

Type

Invention Patent

Filing

05/29/1985

Publication

02/04/1986

Progress at the INPI

  1. Filing05/29/85
  2. Publication02/04/86
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 05/29/1985 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: 04/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Halliburton Company

US

See this company's full portfolio

Inventors

C. G. (pessoa física)

Technical data

Priority claims

US

615.394 · 05/30/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

04/19/1988

RPI 913

Publicação do pedido de patente

#3.1

02/04/1986

RPI 798

Pedido de patente depositado

#2.1

08/06/1985

RPI 772

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C09K 7/02; E02D 3/12.

03/27/2018

RPI 2464

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