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Official data from INPI

SONDA DE PERFILAGEM POR INDUÇÃO COM SUPORTE METÁLICO

Em AnáliseInvention Patent

Application data

Number

PI8502094

Type

Invention Patent

Filing

05/02/1985

Publication

12/09/1986

Progress at the INPI

  1. Filing05/02/85
  2. Publication12/09/86
  3. Examination03/17/87
  4. Allowance09/04/90
  5. Grant03/26/91
  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: 03/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Prad Research and Development N.V.

NL

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Inventors

J. H. (pessoa física)

US

R. C. (pessoa física)

US

T. B. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/17/1987

RPI 856

Publicação do pedido de patente

#3.1

12/09/1986

RPI 842

Pedido de patente depositado

#2.1

07/09/1985

RPI 768

Carta-patente expirada

#21.1

Patente extinta em 02/05/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

03/26/1991

RPI 1060

Notificação para pagamento de retribuição

#13.1

12/18/1990

RPI 1046

Deferimento

#9.1

09/04/1990

RPI 1031

Exigência - art. 36 da LPI

#6.1

04/24/1990

RPI 1015

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