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Official data from INPI

Aperfeiçoamento em fechaduras

Arquivada/ExtintaInvention Patent

Application data

Number

PI9005985

Type

Invention Patent

Filing

11/16/1990

Publication

07/02/1991

Progress at the INPI

  1. Filing11/16/90
  2. Publication07/02/91
  3. Examination11/12/91
  4. Allowance12/19/95
  5. Grant04/29/97
  6. Expired06/08/10

The letters patent expired on 06/08/2010: 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: 06/08/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. K. (pessoa física)

RS, BR

Inventors

E. K. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 16/11/2005

06/08/2010

RPI 2057

Concessão da patente

#16.1

04/29/1997

RPI 1378

Notificação para pagamento de retribuição

#13.1

06/25/1996

RPI 1334

Deferimento

#9.1

12/19/1995

RPI 1307

Solicitação de exame técnico

#4.1

11/12/1991

RPI 1093

Publicação antecipada

#3.2

07/02/1991

RPI 1074

Pedido de patente depositado

#2.1

05/14/1991

RPI 1067

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