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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8302141

Type

Invention Patent

Filing

04/20/1983

Publication

12/27/1983

Progress at the INPI

  1. Filing04/20/83
  2. Publication12/27/83
  3. Examination02/18/86
  4. Allowance12/16/86
  5. Grant08/25/87
  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.

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Latest action published by the INPI: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. D. (pessoa física)

SP, BR

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Inventors

A. P. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Solicitação de exame técnico

#4.1

02/18/1986

RPI 800

Publicação do pedido de patente

#3.1

12/27/1983

RPI 688

Pedido de patente depositado

#2.1

06/14/1983

RPI 660

Carta-patente expirada

#21.1

Patente extinta em 20/04/98

07/01/2008

RPI 1956

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