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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8300480

Type

Invention Patent

Filing

02/01/1983

Publication

09/04/1984

Progress at the INPI

  1. Filing02/01/83
  2. Publication09/04/84
  3. Examination10/29/85
  4. Allowance10/29/86
  5. Grant09/10/91
  6. 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.

Talk to a specialist

Latest action published by the INPI: 03/31/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

L. C. (pessoa física)

RJ, BR

Inventors

C. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

03/31/1987

RPI 858

Deferimento

#9.1

10/29/1986

RPI 836

Solicitação de exame técnico

#4.1

10/29/1985

RPI 784

Publicação do pedido de patente

#3.1

09/04/1984

RPI 724

14.1

11/01/1983

RPI 680

Pedido de patente depositado

#2.1

03/15/1983

RPI 647

Carta-patente expirada

#21.1

Patente extinta em 01/02/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

09/10/1991

RPI 1084

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