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Official data from INPI

MAQUINA DE TRABALHO

Em AnáliseInvention Patent

Application data

Number

PI8704220

Type

Invention Patent

Filing

08/14/1987

Publication

04/26/1988

Progress at the INPI

  1. Filing08/14/87
  2. Publication04/26/88
  3. Examination06/07/88
  4. Allowance09/10/91
  5. Grant03/30/93
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 06/07/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hueller Hille Gmbh

DE

Inventors

D. G. (pessoa física)

DE

H. J. (pessoa física)

DE

M. H. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

86113064.9 · 09/23/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/07/1988

RPI 920

Publicação do pedido de patente

#3.1

04/26/1988

RPI 914

Pedido de patente depositado

#2.1

11/10/1987

RPI 890

Carta-patente expirada

#21.1

Patente extinta em 14/08/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

03/30/1993

RPI 1165

15.18

03/24/1992

RPI 1112

Retificação

#15.3

02/11/1992

RPI 1106

Republicação - classificação IPC

#15.11

11/19/1991

RPI 1094

Deferimento

#9.1

09/10/1991

RPI 1084

Exigência - art. 36 da LPI

#6.1

04/09/1991

RPI 1062

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