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Official data from INPI

PROCESSO E APARELHO DE FUNDIÇÃO POR FORÇA CONTRÁRIA À GRAVIDADE DE METAL EM ESTADO DE FUSÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9103830

Type

Invention Patent

Filing

09/04/1991

Publication

05/19/1992

Progress at the INPI

  1. Filing09/04/91
  2. Publication05/19/92
  3. Examination11/17/92
  4. Allowance11/24/98
  5. Grant06/01/99
  6. Expired06/11/13

The letters patent expired on 06/11/2013: 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: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hitchiner Manufacturing Co., Inc.

US

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Inventors

G. C. (pessoa física)

US

R. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

579,319 · 09/06/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinte em 04/09/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

06/01/1999

RPI 1482

Deferimento

#9.1

11/24/1998

RPI 1455

Solicitação de exame técnico

#4.1

11/17/1992

RPI 1146

Publicação do pedido de patente

#3.1

05/19/1992

RPI 1120

Pedido de patente depositado

#2.1

10/15/1991

RPI 1089

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