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Official data from INPI

SISTEMA DE EXPLORAÇÃO

ConcedidaInvention Patent

Application data

Number

PI8402002

Type

Invention Patent

Filing

04/30/1984

Publication

03/19/1985

Progress at the INPI

  1. Filing04/30/84
  2. Publication03/19/85
  3. Examination03/31/87
  4. Allowance12/06/88
  5. Grant09/26/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

X. C. (pessoa física)

US

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Inventors

R. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

496,373 · 05/20/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

12/06/1988

RPI 946

Solicitação de exame técnico

#4.1

03/31/1987

RPI 858

Publicação do pedido de patente

#3.1

03/19/1985

RPI 752

Pedido de patente depositado

#2.1

07/10/1984

RPI 716

Carta-patente expirada

#21.1

Patente extinta em 30/04/99

07/08/2008

RPI 1957

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