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Official data from INPI

COQUILHAS DE FUNDIÇÃO POR EXTRUSÃO E PROCESSO PARA A SUA OBTENÇÃO.

PublicadaInvention Patent
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Application data

Number

PI8703081

Type

Invention Patent

Filing

06/19/1987

Publication

03/08/1988
View on INPI

Progress at the INPI

  1. Filing06/19/87
  2. Publication03/08/88
  3. Examination04/10/90
  4. Allowance09/02/97
  5. Grant07/28/98
  6. Expired08/26/08

The letters patent expired on 08/26/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 03/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kabel - Und Metallwerke Gutehoffnungshuette Ag.

DE

Inventors

H. G. (pessoa física)

DE

Technical data

IPC Classification

C22C 9/06

Priority claims

DE

P 36 20 655.5 · 06/20/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/08/1988

RPI 907

Pedido de patente depositado

#2.1

09/01/1987

RPI 880

Carta-patente expirada

#21.1

Patente extinta em 28/07/2008

08/26/2008

RPI 1964

Concessão da patente

#16.1

07/28/1998

RPI 1440

Deferimento

#9.1

09/02/1997

RPI 1396

Exigência - art. 36 da LPI

#6.1

09/03/1996

RPI 1344

Exigência - art. 36 da LPI

#6.1

05/03/1994

RPI 1222

Solicitação de exame técnico

#4.1

04/10/1990

RPI 1013

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