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Official data from INPI

DISPOSITIVO PARA AUTO DEFESA.

Prazo de SigiloInvention Patent

Application data

Number

PI8804571

Type

Invention Patent

Filing

09/01/1988

Publication

04/24/1990

Progress at the INPI

  1. Filing09/01/88
  2. Publication04/24/90
  3. Examination10/09/90
  4. Allowance11/01/94
  5. Grant07/25/95
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 01/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ITM - Inter Técnica Micron Indústria e Comércio Ltda

SP, BR

See this company's full portfolio

Inventors

D. F. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

01/24/1989

RPI 953

Carta-patente expirada

#21.1

Patente extinta em 01/09/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

07/25/1995

RPI 1286

Notificação para pagamento de retribuição

#13.1

03/07/1995

RPI 1266

Deferimento

#9.1

11/01/1994

RPI 1248

Solicitação de exame técnico

#4.1

10/09/1990

RPI 1036

Publicação do pedido de patente

#3.1

04/24/1990

RPI 1015

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