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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent
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Application data

Number

PI8206556

Type

Invention Patent

Filing

11/11/1982

Publication

09/27/1983
View on INPI

Progress at the INPI

  1. Filing11/11/82
  2. Publication09/27/83
  3. Examination03/07/84
  4. Allowance07/08/86
  5. Grant03/31/87
  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.

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Latest action published by the INPI: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Interamerican Zinc, INC.

ES

Inventors

S. [. (pessoa física)

Technical data

IPC Classification

C22B 19/30

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

12/15/1987

RPI 895

Republicação - classificação IPC

#15.11

04/28/1987

RPI 862

Concessão da patente

#16.1

03/31/1987

RPI 858

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

01/15/1985

RPI 743

Solicitação de exame técnico

#4.1

03/07/1984

RPI 698

Publicação do pedido de patente

#3.1

09/27/1983

RPI 675

Pedido de patente depositado

#2.1

01/04/1983

RPI 637

Carta-patente expirada

#21.1

Patente extinta em 11/11/97

07/01/2008

RPI 1956

20.4

06/14/1994

RPI 1228

Pedido de licença compulsória

#20.1

06/07/1994

RPI 1227

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