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Official data from INPI

PROCESSO APERFEIÇOADO DE HIDROFOBIZAÇÃO DE VERMICULITA EXPANDIDA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9004025

Type

Invention Patent

Filing

08/08/1990

Publication

02/25/1992

Progress at the INPI

  1. Filing08/08/90
  2. Publication02/25/92
  3. Examination10/27/92
  4. Allowance08/03/99
  5. Grant12/28/99
  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

J. M. (pessoa física)

MG, BR

Inventors

J. M. (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 08/08/2010

01/22/2013

RPI 2194

Concessão da patente

#16.1

12/28/1999

RPI 1512

Deferimento

#9.1

08/03/1999

RPI 1491

Exigência - art. 36 da LPI

#6.1

11/10/1998

RPI 1453

Exigência - art. 36 da LPI

#6.1

03/03/1998

RPI 1419

Conhecimento de parecer técnico

#7.1

03/18/1997

RPI 1372

Solicitação de exame técnico

#4.1

10/27/1992

RPI 1143

Publicação do pedido de patente

#3.1

02/25/1992

RPI 1108

Pedido de patente depositado

#2.1

02/19/1991

RPI 1055

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