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Official data from INPI

SISTEMA DE DETECÇÃO AC EM ESTADO SÓLIDO

Em AnáliseInvention Patent

Application data

Number

PI8504807

Type

Invention Patent

Filing

09/30/1985

Publication

05/05/1987

Progress at the INPI

  1. Filing09/30/85
  2. Publication05/05/87
  3. Examination07/18/89
  4. Allowance02/25/92
  5. Grant10/27/92
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CMW Equipamentos S/A

SP, BR

Inventors

M. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/18/1989

RPI 978

14.1

03/15/1988

RPI 908

Publicação do pedido de patente

#3.1

05/05/1987

RPI 863

Pedido de patente depositado

#2.1

11/11/1986

RPI 838

Carta-patente expirada

#21.1

Patente extinta em 30/09/2000

07/15/2008

RPI 1958

20.4

06/08/1993

RPI 1175

Concessão da patente

#16.1

10/27/1992

RPI 1143

Notificação para pagamento de retribuição

#13.1

07/07/1992

RPI 1127

Deferimento

#9.1

02/25/1992

RPI 1108

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