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Official data from INPI

DISPOSITIVO PARA TRANSPORTE DE MATERIAL ENTRE COMPARTIMENTOS DE PRESSÃO DISTINTA E PROCESSO PARA OPERAÇÃO DESSE DISPOSITIVO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9003343

Type

Invention Patent

Filing

07/12/1990

Publication

08/27/1991

Progress at the INPI

  1. Filing07/12/90
  2. Publication08/27/91
  3. Examination08/03/93
  4. Allowance05/31/94
  5. Grant03/28/95
  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

M. A. (pessoa física)

AT

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Inventors

F. K. (pessoa física)

DE

H. P. (pessoa física)

AT

Technical data

IPC Classification

Priority claims

AT

A 1696/89 · 07/13/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 12/07/2005

05/25/2010

RPI 2055

Concessão da patente

#16.1

03/28/1995

RPI 1269

Notificação para pagamento de retribuição

#13.1

10/04/1994

RPI 1244

Deferimento

#9.1

05/31/1994

RPI 1226

Solicitação de exame técnico

#4.1

08/03/1993

RPI 1183

Publicação do pedido de patente

#3.1

08/27/1991

RPI 1082

Pedido de patente depositado

#2.1

01/15/1991

RPI 1050

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