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Official data from INPI

TECLADO COM TECLAS PIEZOELÉTRICAS

Em AnáliseInvention Patent

Application data

Number

PI8603456

Type

Invention Patent

Filing

07/22/1986

Publication

03/04/1987

Progress at the INPI

  1. Filing07/22/86
  2. Publication03/04/87
  3. Examination05/16/89
  4. Allowance06/02/92
  5. Grant01/26/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dynalab Ag

CH

Inventors

T. I. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

3191/85 · 07/23/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/16/1989

RPI 969

Publicação do pedido de patente

#3.1

03/04/1987

RPI 854

Pedido de patente depositado

#2.1

12/30/1986

RPI 845

Carta-patente expirada

#21.1

Patente extinta em 22/07/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

01/26/1993

RPI 1156

Notificação para pagamento de retribuição

#13.1

10/20/1992

RPI 1142

Republicação - classificação IPC

#15.11

07/28/1992

RPI 1130

Deferimento

#9.1

06/02/1992

RPI 1122

14.1

12/26/1990

RPI 1047

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