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Official data from INPI

PROCESSO PARA O LINGOTAMENTO CONTÍNUO DE AÇO CONTENDO INGREDIENTES QUE EMITEM FUMACAS OU FUMOS, E, APARELHO PARA O LINGOTAMENTO CONTÍNUO DE AÇO

Em AnáliseInvention Patent

Application data

Number

PI8702031

Type

Invention Patent

Filing

04/27/1987

Publication

02/09/1988

Progress at the INPI

  1. Filing04/27/87
  2. Publication02/09/88
  3. Examination05/17/88
  4. Allowance06/27/95
  5. Grant01/30/96
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Inland Steel Company

US

See this company's full portfolio

Inventors

J. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

863,052 · 05/14/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/17/1988

RPI 917

Publicação do pedido de patente

#3.1

02/09/1988

RPI 903

Pedido de patente depositado

#2.1

07/28/1987

RPI 875

Carta-patente expirada

#21.1

Patente extinta em 27/04/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

01/30/1996

RPI 1313

Notificação para pagamento de retribuição

#13.1

11/07/1995

RPI 1301

Deferimento

#9.1

06/27/1995

RPI 1282

Exigência - art. 36 da LPI

#6.1

11/29/1994

RPI 1252

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