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Official data from INPI

APARELHO PARA PREENCHIMENTO COM CASCALHO DE UM POÇO E PARA ABERTURA DO POÇO PARA PRODUÇÃO, CONJUNTO PARA TERMINAÇÃO DE POÇO E PROCESSO PARA A TERMINAÇÃO DE UM POÇO

ArquivadaInvention Patent

Application data

Number

PI9004678

Type

Invention Patent

Filing

09/19/1990

Publication

09/10/1991

Progress at the INPI

  1. Filing09/19/90
  2. Publication09/10/91
  3. Examination05/18/93
  4. Allowance06/28/94
  5. Abandoned
  6. In force

The application was allowed on 06/28/1994 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 05/02/1995. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Halliburton Company

US

See this company's full portfolio

Inventors

T. W. (pessoa física)

Technical data

IPC Classification

Priority claims

US

422,849 · 10/17/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

05/02/1995

RPI 1274

Notificação para pagamento de retribuição

#13.1

11/01/1994

RPI 1248

Deferimento

#9.1

06/28/1994

RPI 1230

Solicitação de exame técnico

#4.1

05/18/1993

RPI 1172

Publicação do pedido de patente

#3.1

09/10/1991

RPI 1084

Pedido de patente depositado

#2.1

04/02/1991

RPI 1061

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