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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8300280

Type

Invention Patent

Filing

01/21/1983

Publication

08/28/1984

Progress at the INPI

  1. Filing01/21/83
  2. Publication08/28/84
  3. Examination12/04/84
  4. Allowance05/10/88
  5. Grant02/28/89
  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: 02/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Outokumpu Oy

FI

See this company's full portfolio

Inventors

L. O. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1989

RPI 958

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/10/1988

RPI 916

Exigência - art. 36 da LPI

#6.1

06/16/1987

RPI 869

Conhecimento de parecer técnico

#7.1

08/06/1985

RPI 772

Solicitação de exame técnico

#4.1

12/04/1984

RPI 737

Publicação do pedido de patente

#3.1

08/28/1984

RPI 723

Pedido de patente depositado

#2.1

03/08/1983

RPI 646

Carta-patente expirada

#21.1

Patente extinta em 21/01/98

07/01/2008

RPI 1956

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