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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8402679

Type

Invention Patent

Filing

06/01/1984

Publication

05/07/1985

Progress at the INPI

  1. Filing06/01/84
  2. Publication05/07/85
  3. Examination11/05/85
  4. Allowance12/08/87
  5. Grant06/28/88
  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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

D. G. (pessoa física)

S. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Deferimento

#9.1

12/08/1987

RPI 894

Solicitação de exame técnico

#4.1

11/05/1985

RPI 785

Publicação do pedido de patente

#3.1

05/07/1985

RPI 759

Pedido de patente depositado

#2.1

08/14/1984

RPI 721

Carta-patente expirada

#21.1

Patente extinta em 01/06/99

07/08/2008

RPI 1957

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