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Official data from INPI

PLACA DE FECHAMENTO REFRATÁRIA E FECHO CORREDIÇA NA SAÍDA DE UM VASO CONTENDO UMA FUSÃO DE METAL

PublicadaInvention Patent

Application data

Number

PI8806502

Type

Invention Patent

Filing

12/09/1988

Publication

08/22/1989

Progress at the INPI

  1. Filing12/09/88
  2. Publication08/22/89
  3. Examination09/11/90
  4. Allowance04/16/96
  5. Grant06/24/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Stopinc Ag

CH

See this company's full portfolio

Inventors

R. F. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

00142/88 · 01/15/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/22/1989

RPI 983

Pedido de patente depositado

#2.1

04/18/1989

RPI 965

Carta-patente expirada

#21.1

Patente extinta em 09/12/2008

05/21/2013

RPI 2211

Concessão da patente

#16.1

06/24/1997

RPI 1386

Deferimento

#9.1

04/16/1996

RPI 1324

Exigência - art. 36 da LPI

#6.1

10/10/1995

RPI 1297

Solicitação de exame técnico

#4.1

09/11/1990

RPI 1032

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