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Official data from INPI

PROCESSO DE REVESTIMENTO

Em ExigênciaInvention Patent
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Application data

Number

PI8501377

Type

Invention Patent

Filing

03/29/1984

Publication

11/26/1985
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Progress at the INPI

  1. Filing03/29/84
  2. Publication11/26/85
  3. Abandoned04/22/87
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PILKINGTON BROTHERS PLC [GB]

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Inventors

H. E. (pessoa física)

L. E. (pessoa física)

Technical data

IPC Classification

C03C 17/245

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

05/30/1989

RPI 971

Solicitação de exame técnico

#4.1

04/22/1987

RPI 861

Publicação do pedido de patente

#3.1

11/26/1985

RPI 788

Pedido de patente depositado

#2.1

06/18/1985

RPI 765

Arquivamento - Art. 36 §1° da LPI

#11.2

01/15/1991

RPI 1050

Exigência - art. 36 da LPI

#6.1

05/22/1990

RPI 1019

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