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Official data from INPI

PROCESSO PARA DIMINUIR O CONSUMO DE ENERGIA DE UMA MISTURA OU SUSPENSÃO DE MATERIAL EM FIBRA

PublicadaInvention Patent

Application data

Number

PI8700553

Type

Invention Patent

Filing

02/06/1987

Publication

12/08/1987

Progress at the INPI

  1. Filing02/06/87
  2. Publication12/08/87
  3. Examination03/20/90
  4. Allowance03/16/93
  5. Grant09/28/93
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. A. (pessoa física)

SE

Inventors

J. G. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

SE

86.00582-4 · 02/11/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/08/1987

RPI 894

Pedido de patente depositado

#2.1

06/09/1987

RPI 868

Carta-patente expirada

#21.1

Patente extinta em 06/02/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

09/28/1993

RPI 1191

Notificação para pagamento de retribuição

#13.1

07/06/1993

RPI 1179

Deferimento

#9.1

03/16/1993

RPI 1163

Solicitação de exame técnico

#4.1

03/20/1990

RPI 1010

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