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Official data from INPI

MÉTODO E APARELHO PARA CONTROLAR A ALTURA DE DESLOCAMENTO DO CABEÇOTE EM UMA UNIDADE DE ARMAZENAMENTO MAGNÉTICO.

Em AnáliseInvention Patent

Application data

Number

PI8605250

Type

Invention Patent

Filing

10/28/1986

Publication

07/28/1987

Progress at the INPI

  1. Filing10/28/86
  2. Publication07/28/87
  3. Examination08/08/89
  4. Allowance03/23/93
  5. Grant07/27/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 08/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. C. (pessoa física)

US

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Inventors

P. M. (pessoa física)

CH

W. P. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

EP

85114668.8 · 11/19/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/08/1989

RPI 981

Publicação do pedido de patente

#3.1

07/28/1987

RPI 875

Pedido de patente depositado

#2.1

04/07/1987

RPI 859

Carta-patente expirada

#21.1

Patente extinta em 28/10/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

07/27/1993

RPI 1182

Republicação - classificação IPC

#15.11

06/01/1993

RPI 1174

Deferimento

#9.1

03/23/1993

RPI 1164

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