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Official data from INPI

DEPOSICAO QUIMICA EM FASE DE VAPOR DE UMA PELICULA REFLETORA NA SUPERFICIE INFERIOR DE UMA FITA DE VIDRO FLUTUANTE

Em AnáliseInvention Patent

Application data

Number

PI8503600

Type

Invention Patent

Filing

07/30/1984

Publication

04/29/1986

Progress at the INPI

Under appeal
  1. Filing07/30/84
  2. Publication04/29/86
  3. Examination06/14/88
  4. Refused03/26/91
  5. Grant
  6. In force

The application was refused by the INPI on 03/26/1991. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PPG INDUSTRIES INC [US]

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Inventors

S. E. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/14/1988

RPI 921

Publicação do pedido de patente

#3.1

04/29/1986

RPI 810

Pedido de patente depositado

#2.1

09/24/1985

RPI 779

Indeferimento

#9.2

03/26/1991

RPI 1060

Conhecimento de parecer técnico

#7.1

05/22/1990

RPI 1019

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