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Official data from INPI

APERFEIÇOAMENTO EM REGISTRO DE PRESSÃO

ConcedidaInvention Patent

Application data

Number

PI8204611

Type

Invention Patent

Filing

08/05/1982

Publication

03/13/1984

Progress at the INPI

  1. Filing08/05/82
  2. Publication03/13/84
  3. Examination06/26/84
  4. Allowance07/08/86
  5. Grant04/28/87
  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.

Talk to a specialist

Latest action published by the INPI: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Hansen Industrial

SC, BR

Tigre Participaçoes S/A.

SC, BR

See this company's full portfolio

Inventors

C. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/28/1987

RPI 862

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

05/07/1985

RPI 759

Pedido de certificado de adição de invenção

#5.1

11/27/1984

RPI 736

Solicitação de exame técnico

#4.1

06/26/1984

RPI 714

Publicação do pedido de patente

#3.1

03/13/1984

RPI 699

Pedido de patente depositado

#2.1

09/21/1982

RPI 622

Carta-patente expirada

#21.1

Patente extinta em 05/08/97

07/01/2008

RPI 1956

20.4

09/12/1995

RPI 1293

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