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Official data from INPI

CHAVE DE BOTÃO DE CALCAR

ConcedidaInvention Patent

Application data

Number

PI8203727

Type

Invention Patent

Filing

06/25/1982

Publication

01/31/1984

Progress at the INPI

  1. Filing06/25/82
  2. Publication01/31/84
  3. Examination06/19/84
  4. Allowance07/09/85
  5. Grant04/29/86
  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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. K. (pessoa física)

JP

Inventors

M. T. (pessoa física)

JP

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

12/26/1984

RPI 740

Solicitação de exame técnico

#4.1

06/19/1984

RPI 713

Publicação do pedido de patente

#3.1

01/31/1984

RPI 693

Pedido de patente depositado

#2.1

08/10/1982

RPI 616

Carta-patente expirada

#21.1

Patente extinta em 25/06/97

07/01/2008

RPI 1956

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