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Official data from INPI

JUNTA DE ARTICULAÇÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9003680

Type

Invention Patent

Filing

07/27/1990

Publication

09/03/1991

Progress at the INPI

  1. Filing07/27/90
  2. Publication09/03/91
  3. Examination11/23/93
  4. Allowance07/16/96
  5. Grant04/29/97
  6. Expired05/25/10

The letters patent expired on 05/25/2010: 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: 05/25/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. I. (pessoa física)

US

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Inventors

D. P. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/387,203 · 07/28/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 27/07/2005

05/25/2010

RPI 2055

Concessão da patente

#16.1

04/29/1997

RPI 1378

Notificação para pagamento de retribuição

#13.1

03/11/1997

RPI 1371

Deferimento

#9.1

07/16/1996

RPI 1337

Solicitação de exame técnico

#4.1

11/23/1993

RPI 1199

Publicação do pedido de patente

#3.1

09/03/1991

RPI 1083

Pedido de patente depositado

#2.1

02/05/1991

RPI 1053

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