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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8400270

Type

Invention Patent

Filing

01/23/1984

Publication

02/12/1985

Progress at the INPI

  1. Filing01/23/84
  2. Publication02/12/85
  3. Examination03/24/87
  4. Allowance04/12/88
  5. Grant09/27/88
  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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. M. (pessoa física)

US

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Inventors

A. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

07/26/1988

RPI 927

Deferimento

#9.1

04/12/1988

RPI 912

Solicitação de exame técnico

#4.1

03/24/1987

RPI 857

Publicação do pedido de patente

#3.1

02/12/1985

RPI 747

Pedido de patente depositado

#2.1

04/10/1984

RPI 703

Carta-patente expirada

#21.1

Patente extinta em 23/01/99

07/08/2008

RPI 1957

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