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Official data from INPI

PROCESSO E DISPOSITIVO PARA A DRENAGEM DE CLÍNQUER

Arquivada/ExtintaInvention Patent

Application data

Number

PI9105439

Type

Invention Patent

Filing

12/13/1991

Publication

08/25/1992

Progress at the INPI

  1. Filing12/13/91
  2. Publication08/25/92
  3. Examination03/16/93
  4. Allowance02/21/96
  5. Grant10/29/96
  6. Expired07/06/10

The letters patent expired on 07/06/2010: 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: 07/06/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Martin GmbH Fuer Umwelt-Und Energietechnik

DE

See this company's full portfolio

Inventors

J. M. (pessoa física)

DE

W. M. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 40 41 381.0 · 12/21/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 13/12/2006

07/06/2010

RPI 2061

Concessão da patente

#16.1

10/29/1996

RPI 1352

Deferimento

#9.1

02/21/1996

RPI 1316

Solicitação de exame técnico

#4.1

03/16/1993

RPI 1163

Publicação do pedido de patente

#3.1

08/25/1992

RPI 1134

Pedido de patente depositado

#2.1

02/04/1992

RPI 1105

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