Official data from INPI

SEM TITULO

ConcedidaInvention Patent

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Application data

Number

PI8304846

Type

Invention Patent

Filing

09/06/1983

Publication

04/24/1984

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Progress at the INPI

Filing09/06/83
Publication04/24/84
Examination05/06/86
Allowance06/28/88
Grant03/28/89
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: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. K. (pessoa física)

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/28/1989

RPI 962

Notificação para pagamento de retribuição

#13.1

10/25/1988

RPI 940

Deferimento

#9.1

06/28/1988

RPI 923

6.2

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

05/06/1986

RPI 811

Publicação do pedido de patente

#3.1

04/24/1984

RPI 705

Pedido de patente depositado

#2.1

11/08/1983

RPI 681

Carta-patente expirada

#21.1

Patente extinta em 06/09/98

07/01/2008

RPI 1956

22.2

Petição não conhecida

05/25/1999

RPI 1481

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