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Official data from INPI

APERFEIÇOAMENTOS EM SAPATAS DE FREIO PARA TRENS

Em AnáliseInvention Patent

Application data

Number

PI8906087

Type

Invention Patent

Filing

12/01/1989

Publication

05/07/1991

Progress at the INPI

Technical opinion to answer
  1. Filing12/01/89
  2. Publication05/07/91
  3. Examination07/27/93
  4. Allowance
  5. Grant
  6. In force

The INPI issued a technical opinion on patentability. The applicant must respond for examination to continue.

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Latest action published by the INPI: 08/06/1996. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Siderea S A I C y A

AR

S. A. (pessoa física)

AR

Inventors

A. T. (pessoa física)

AR

A. G. (pessoa física)

AR

Technical data

IPC Classification

Priority claims

AR

314.494 · 07/25/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

08/06/1996

RPI 1340

Retificação de parecer técnico

#7.3

12/13/1994

RPI 1254

Conhecimento de parecer técnico

#7.1

07/26/1994

RPI 1234

Solicitação de exame técnico

#4.1

07/27/1993

RPI 1182

Publicação do pedido de patente

#3.1

05/07/1991

RPI 1066

Pedido de patente depositado

#2.1

03/20/1990

RPI 1010

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