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Official data from INPI

TECLADO CHATO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9103703

Type

Invention Patent

Filing

08/28/1991

Publication

05/19/1992

Progress at the INPI

  1. Filing08/28/91
  2. Publication05/19/92
  3. Examination07/05/94
  4. Allowance02/23/99
  5. Grant08/24/99
  6. Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. 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

2806/90 · 08/29/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinte em 28/08/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

08/24/1999

RPI 1494

Deferimento

#9.1

02/23/1999

RPI 1468

Exigência - art. 36 da LPI

#6.1

04/14/1998

RPI 1425

Solicitação de exame técnico

#4.1

07/05/1994

RPI 1231

Publicação do pedido de patente

#3.1

05/19/1992

RPI 1120

Pedido de patente depositado

#2.1

10/01/1991

RPI 1087

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