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Official data from INPI

ELEMENTO OBTURADOR.

ArquivadaInvention Patent

Application data

Number

PI8302271

Type

Invention Patent

Filing

05/03/1983

Publication

01/03/1984

Progress at the INPI

  1. Filing05/03/83
  2. Publication01/03/84
  3. Examination03/11/86
  4. Allowance12/27/88
  5. Abandoned
  6. In force

The application was allowed on 12/27/1988 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: 12/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Halliburton Company

US

See this company's full portfolio

Inventors

H. E. (pessoa física)

S. D. (pessoa física)

Technical data

IPC Classification

Priority claims

US

375,417 · 05/06/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

12/12/1989

RPI 999

Notificação para pagamento de retribuição

#13.1

05/02/1989

RPI 967

Republicação - classificação IPC

#15.11

01/10/1989

RPI 951

Deferimento

#9.1

12/27/1988

RPI 949

Exigência - art. 36 da LPI

#6.1

06/21/1988

RPI 922

Exigência - art. 36 da LPI

#6.1

08/18/1987

RPI 878

Solicitação de exame técnico

#4.1

03/11/1986

RPI 803

Publicação do pedido de patente

#3.1

01/03/1984

RPI 689

Pedido de patente depositado

#2.1

06/21/1983

RPI 661

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