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Official data from INPI

MÁQUINA PARA FRESAR OS DENTES DE UMA CREMALHEIRA.

Em AnáliseInvention Patent

Application data

Number

PI8403680

Type

Invention Patent

Filing

07/20/1984

Publication

07/02/1985

Progress at the INPI

  1. Filing07/20/84
  2. Publication07/02/85
  3. Examination05/20/86
  4. Allowance06/28/88
  5. Grant04/25/89
  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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. B. (pessoa física)

AU

Inventors

K. R. (pessoa física)

AU

Technical data

IPC Classification

Priority claims

AU

PG 0399/83 · 07/21/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

10/17/1989

RPI 991

Concessão da patente

#16.1

04/25/1989

RPI 966

Notificação para pagamento de retribuição

#13.1

10/25/1988

RPI 940

Deferimento

#9.1

06/28/1988

RPI 923

Solicitação de exame técnico

#4.1

05/20/1986

RPI 813

Publicação do pedido de patente

#3.1

07/02/1985

RPI 767

Pedido de patente depositado

#2.1

10/02/1984

RPI 728

Carta-patente expirada

#21.1

Patente extinta em 20/07/99

07/08/2008

RPI 1957

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