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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8105424

Type

Invention Patent

Filing

08/25/1981

Publication

05/11/1982

Progress at the INPI

  1. Filing08/25/81
  2. Publication05/11/82
  3. Examination06/26/84
  4. Allowance08/20/85
  5. Grant04/29/86
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. V. (pessoa física)

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Inventors

G. W. (pessoa física)

O. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

12/24/1985

RPI 792

Deferimento

#9.1

08/20/1985

RPI 774

Exigência - art. 36 da LPI

#6.1

01/22/1985

RPI 744

Solicitação de exame técnico

#4.1

06/26/1984

RPI 714

Publicação do pedido de patente

#3.1

05/11/1982

RPI 603

Carta-patente expirada

#21.1

Patente extinta em 25/08/96

08/19/2008

RPI 1963

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