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Official data from INPI

APERFEIÇOAMENTO NOS MEIOS DE FIXAÇÃO DAS FERRAGENS EM ISOLADOR ELÉTRICO SINTÉTICO.

Em AnáliseInvention Patent

Application data

Number

PI8406160

Type

Invention Patent

Filing

11/27/1984

Publication

05/21/1985

Progress at the INPI

  1. Filing11/27/84
  2. Publication05/21/85
  3. Examination11/12/85
  4. Allowance03/13/90
  5. Grant11/27/90
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 11/12/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Porcelana Schmidt S/A

PR, BR

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Inventors

W. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/12/1985

RPI 786

Publicação antecipada

#3.2

05/21/1985

RPI 761

Pedido de patente depositado

#2.1

02/26/1985

RPI 749

Carta-patente expirada

#21.1

Patente extinta em 27/11/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

11/27/1990

RPI 1043

Notificação para pagamento de retribuição

#13.1

07/24/1990

RPI 1025

Deferimento

#9.1

03/13/1990

RPI 1009

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