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Official data from INPI

LIGA TEMPERÁVEL POR ENVELHECIMENTO

Em AnáliseInvention Patent

Application data

Number

PI8304448

Type

Invention Patent

Filing

08/17/1983

Publication

03/27/1984

Progress at the INPI

  1. Filing08/17/83
  2. Publication03/27/84
  3. Examination05/06/86
  4. Allowance07/11/89
  5. Grant02/06/90
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Inco Alloys International, Inc.

US

See this company's full portfolio

Inventors

D. J. (pessoa física)

J. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

409.838 · 08/20/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/14/1989

RPI 995

Deferimento

#9.1

07/11/1989

RPI 977

14.4

10/18/1988

RPI 939

Exigência - art. 36 da LPI

#6.1

09/20/1988

RPI 935

6.2

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

05/06/1986

RPI 811

Publicação do pedido de patente

#3.1

03/27/1984

RPI 701

Pedido de patente depositado

#2.1

10/25/1983

RPI 679

Carta-patente expirada

#21.1

Patente extinta em 17/08/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

02/06/1990

RPI 1005

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