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Official data from INPI

TRANSFORMADOR PRE-AQUECIMENTO

Em AnáliseInvention Patent

Application data

Number

PI8505831

Type

Invention Patent

Filing

11/08/1985

Publication

06/09/1987

Progress at the INPI

Under appeal
  1. Filing11/08/85
  2. Publication06/09/87
  3. Examination08/16/88
  4. Refused05/29/90
  5. Grant
  6. In force

The application was refused by the INPI on 05/29/1990. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LARROYD TRANSFORMADORES ELETRI [BR]

Inventors

L. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/16/1988

RPI 930

Solicitação de exame não realizada

#4.2

06/07/1988

RPI 920

Publicação do pedido de patente

#3.1

06/09/1987

RPI 868

Pedido de patente depositado

#2.1

01/28/1986

RPI 797

Indeferimento

#9.2

05/29/1990

RPI 1020

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