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Official data from INPI

LIGAÇÃO ENTRE A SAÍDA DE UM RECIPIENTE METALÚRGICO E EM TUBO PROTETOR OU DESCARGA DE IMERSÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9103303

Type

Invention Patent

Filing

08/01/1991

Publication

05/26/1992

Progress at the INPI

  1. Filing08/01/91
  2. Publication05/26/92
  3. Examination07/27/93
  4. Allowance09/01/98
  5. Grant01/26/99
  6. Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Didier-Werke Ag

DE

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Inventors

E. L. (pessoa física)

DE

U. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 40 24 520.9 · 08/02/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 01/08/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

01/26/1999

RPI 1464

Deferimento

#9.1

09/01/1998

RPI 1445

Solicitação de exame técnico

#4.1

07/27/1993

RPI 1182

Publicação do pedido de patente

#3.1

05/26/1992

RPI 1121

Pedido de patente depositado

#2.1

04/21/1992

RPI 1116

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