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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8301378

Type

Invention Patent

Filing

03/18/1983

Publication

11/29/1983

Progress at the INPI

  1. Filing03/18/83
  2. Publication11/29/83
  3. Examination05/07/85
  4. Allowance06/14/88
  5. Grant01/10/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The British Petroleum Company P.L.C.

GB

Inventors

G. F. (pessoa física)

M. J. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/10/1989

RPI 951

Notificação para pagamento de retribuição

#13.1

10/04/1988

RPI 937

Deferimento

#9.1

06/14/1988

RPI 921

Conhecimento de parecer técnico

#7.1

01/12/1988

RPI 899

Exigência - art. 36 da LPI

#6.1

11/18/1986

RPI 839

Solicitação de exame técnico

#4.1

05/07/1985

RPI 759

Publicação do pedido de patente

#3.1

11/29/1983

RPI 684

Pedido de patente depositado

#2.1

05/03/1983

RPI 654

Carta-patente expirada

#21.1

Patente extinta em 18/03/98

07/01/2008

RPI 1956

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