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Official data from INPI

DISPOSITIVO DE FECHO PARA A ABERTURA DE DESCARGA DO FUNDO DE UMA PANELA DE FUNDIÇÃO

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9100747

Type

Invention Patent

Filing

02/25/1991

Publication

10/22/1991
View on INPI

Progress at the INPI

  1. Filing02/25/91
  2. Publication10/22/91
  3. Examination12/24/91
  4. Allowance09/01/98
  5. Grant03/30/99
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

USX Engineers and Consultants, Inc.

US

Zimmermann & Jansen GmbH

DE

See this company's full portfolio

Inventors

J. L. (pessoa física)

DE

J. O. (pessoa física)

DE

W. S. (pessoa física)

DE

Technical data

IPC Classification

B22D 37/00B22D 41/08

Priority claims

DE

P 40 06 064.0 · 02/26/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 25/02/2011

05/28/2013

RPI 2212

Concessão da patente

#16.1

03/30/1999

RPI 1473

Deferimento

#9.1

09/01/1998

RPI 1445

6.5

09/17/1996

RPI 1346

6.2

04/02/1996

RPI 1322

14.1

10/11/1994

RPI 1245

Solicitação de exame técnico

#4.1

12/24/1991

RPI 1099

Pedido de patente depositado

#2.1

11/19/1991

RPI 1094

3.4

11/19/1991

RPI 1094

Publicação do pedido de patente

#3.1

10/22/1991

RPI 1090

Pedido de patente depositado

#2.1

08/27/1991

RPI 1082

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