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Official data from INPI

PROCESSO DE FUNDIÇÃO EM CONTRAGRAVIDADE E APARELHO PARA FUNDIR METAL EM FUSÃO COM EXCLUSÃO DE AR

Em AnáliseInvention Patent

Application data

Number

PI8802221

Type

Invention Patent

Filing

05/06/1988

Publication

12/06/1988

Progress at the INPI

  1. Filing05/06/88
  2. Publication12/06/88
  3. Examination07/04/89
  4. Allowance07/12/94
  5. Grant03/28/95
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 07/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hitchiner Manufacturing Co., Inc.

US

Metal Casting Technology, Inc.

US

See this company's full portfolio

Inventors

G. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

047.334 · 05/07/1987

US

175.231 · 03/30/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/04/1989

RPI 976

Publicação do pedido de patente

#3.1

12/06/1988

RPI 946

Pedido de patente depositado

#2.1

09/27/1988

RPI 936

Carta-patente expirada

#21.1

Patente extinta em 06/05/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

03/28/1995

RPI 1269

Notificação para pagamento de retribuição

#13.1

11/08/1994

RPI 1249

Deferimento

#9.1

07/12/1994

RPI 1232

14.1

03/23/1993

RPI 1164

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