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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8301948

Type

Invention Patent

Filing

04/13/1983

Publication

11/20/1984

Progress at the INPI

  1. Filing04/13/83
  2. Publication11/20/84
  3. Examination08/20/85
  4. Allowance06/28/88
  5. Grant03/28/89
  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: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. Z. (pessoa física)

SP, BR

Inventors

Z. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/28/1989

RPI 962

Notificação para pagamento de retribuição

#13.1

10/25/1988

RPI 940

Deferimento

#9.1

06/28/1988

RPI 923

15.19

12/22/1987

RPI 896

Conhecimento de parecer técnico

#7.1

08/18/1987

RPI 878

Solicitação de exame técnico

#4.1

08/20/1985

RPI 774

Publicação do pedido de patente

#3.1

11/20/1984

RPI 735

Pedido de patente depositado

#2.1

05/31/1983

RPI 658

Carta-patente expirada

#21.1

Patente extinta em 13/04/98

07/01/2008

RPI 1956

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