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Official data from INPI

PROCESSO PARA PRODUZIR UM MATERIAL GRANULAR CERÂMICO POROSO

Arquivada/ExtintaInvention PatentPCT · DE1991000235

Application data

Number

PI9105671

Type

Invention Patent

Filing

03/15/1991

Publication

05/19/1992

PCT

DE1991000235

Progress at the INPI

  1. Filing03/15/91
  2. Publication05/19/92
  3. Examination01/05/93
  4. Allowance12/15/98
  5. Grant05/30/00
  6. Expired06/11/13

The letters patent expired on 06/11/2013: 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: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Effem GmbH

DE

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Inventors

K. C. (pessoa física)

DE

R. H. (pessoa física)

DE

R. L. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 40 11 254.3 · 04/05/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 15/03/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

05/30/2000

RPI 1534

Deferimento

#9.1

12/15/1998

RPI 1458

Exigência - art. 36 da LPI

#6.1

03/10/1998

RPI 1420

Solicitação de exame técnico

#4.1

01/05/1993

RPI 1153

Notificação de entrada na fase nacional - PCT

#1.3

05/19/1992

RPI 1120

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