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Official data from INPI

SISTEMA ÓTICO PARA UM VISOR

ConcedidaInvention Patent

Application data

Number

PI8402296

Type

Invention Patent

Filing

05/15/1984

Publication

12/26/1984

Progress at the INPI

  1. Filing05/15/84
  2. Publication12/26/84
  3. Examination04/23/85
  4. Allowance01/10/89
  5. Grant09/26/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Contraves Ag.

CH

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Inventors

K. A. (pessoa física)

CH

S. S. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

2677/83 · 05/17/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Deferimento

#9.1

01/10/1989

RPI 951

6.2

09/08/1987

RPI 881

Solicitação de exame técnico

#4.1

04/23/1985

RPI 757

Publicação do pedido de patente

#3.1

12/26/1984

RPI 740

Pedido de patente depositado

#2.1

07/24/1984

RPI 718

Carta-patente expirada

#21.1

Patente extinta em 15/05/99

07/08/2008

RPI 1957

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