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Official data from INPI

PROCESSO PARA INTERRUPCAO INTERMITENTE E REINICIO DE LANCAMENTO DE TUBOS DE OLEODUTO AO LARGO E DE RE-ENSARILHAR O OLEODUTO

ConcedidaInvention Patent

Application data

Number

PI8007313

Type

Invention Patent

Filing

11/11/1979

Publication

-

Progress at the INPI

  1. Filing11/11/79
  2. Publication
  3. Examination08/30/83
  4. Allowance05/07/85
  5. Grant11/26/85
  6. Expired12/26/95

The letters patent expired on 12/26/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. C. (pessoa física)

US

Inventors

T. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/26/1985

RPI 788

Notificação para pagamento de retribuição

#13.1

08/27/1985

RPI 775

Deferimento

#9.1

05/07/1985

RPI 759

Exigência - art. 36 da LPI

#6.1

08/28/1984

RPI 723

Pedido de certificado de adição de invenção

#5.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

08/30/1983

RPI 671

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

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