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Official data from INPI

PROCESSO PARA FORMAR MASSA, MASSA E COMPOSIÇÃO EM PÓ PARA FORMAÇÃO DE MASSA POROSA REFRATÁRIA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9003154

Type

Invention Patent

Filing

06/28/1990

Publication

08/27/1991

Progress at the INPI

  1. Filing06/28/90
  2. Publication08/27/91
  3. Examination02/04/92
  4. Allowance08/26/97
  5. Grant08/25/98
  6. Expired01/22/13

The letters patent expired on 01/22/2013: 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: 01/22/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Glaverbel

BE

See this company's full portfolio

Inventors

A. Z. (pessoa física)

BE

L. M. (pessoa física)

US

P. R. (pessoa física)

BE

Technical data

IPC Classification

Priority claims

LU

87 550 · 06/30/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 28/06/2010

01/22/2013

RPI 2194

Concessão da patente

#16.1

08/25/1998

RPI 1444

Deferimento

#9.1

08/26/1997

RPI 1395

Conhecimento de parecer técnico

#7.1

12/03/1996

RPI 1357

6.2

11/21/1995

RPI 1303

Solicitação de exame técnico

#4.1

02/04/1992

RPI 1105

Publicação do pedido de patente

#3.1

08/27/1991

RPI 1082

Pedido de patente depositado

#2.1

01/02/1991

RPI 1048

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