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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8307244

Type

Invention Patent

Filing

12/29/1983

Publication

08/07/1984

Progress at the INPI

  1. Filing12/29/83
  2. Publication08/07/84
  3. Examination12/04/84
  4. Allowance11/10/87
  5. Grant06/28/88
  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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sulzer Brothers Limited

CH

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Inventors

H. J. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

11/10/1987

RPI 890

Exigência - art. 36 da LPI

#6.1

09/17/1985

RPI 778

Solicitação de exame técnico

#4.1

12/04/1984

RPI 737

Publicação do pedido de patente

#3.1

08/07/1984

RPI 720

Pedido de patente depositado

#2.1

03/13/1984

RPI 699

Carta-patente expirada

#21.1

Patente extinta em 29/12/98

07/01/2008

RPI 1956

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