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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8302716

Type

Invention Patent

Filing

05/20/1983

Publication

01/24/1984

Progress at the INPI

  1. Filing05/20/83
  2. Publication01/24/84
  3. Examination05/13/86
  4. Allowance10/13/87
  5. Grant06/14/88
  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.

Talk to a specialist

Latest action published by the INPI: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. D. (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

06/14/1988

RPI 921

Notificação para pagamento de retribuição

#13.1

02/09/1988

RPI 903

Deferimento

#9.1

10/13/1987

RPI 886

Exigência - art. 36 da LPI

#6.1

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

05/13/1986

RPI 812

Publicação do pedido de patente

#3.1

01/24/1984

RPI 692

Pedido de patente depositado

#2.1

07/05/1983

RPI 663

Carta-patente expirada

#21.1

Patente extinta em 20/05/98

08/19/2008

RPI 1963

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