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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8304029

Type

Invention Patent

Filing

07/28/1983

Publication

03/07/1984

Progress at the INPI

  1. Filing07/28/83
  2. Publication03/07/84
  3. Examination07/24/84
  4. Allowance07/30/85
  5. Grant02/04/86
  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: 09/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Armco, Inc.

US

See this company's full portfolio

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

09/06/1988

RPI 933

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/26/1985

RPI 788

Deferimento

#9.1

07/30/1985

RPI 771

Exigência - art. 36 da LPI

#6.1

01/15/1985

RPI 743

Solicitação de exame técnico

#4.1

07/24/1984

RPI 718

Publicação do pedido de patente

#3.1

03/07/1984

RPI 698

Pedido de patente depositado

#2.1

10/04/1983

RPI 676

Carta-patente expirada

#21.1

Patente extinta em 28/07/98

07/01/2008

RPI 1956

Pedido de licença compulsória

#20.1

11/03/1992

RPI 1144

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