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Official data from INPI

PROCESSO PARA FUNDIR E REFINAR MATERIAL VITREO OU SIMILARES, PROCESSO PARA PREPARAR UM PRODUTO DE VIDRO DE SODA-CAL-SILICA E PROCESSO PARA PREPARAR UMA FOLHA DE VIDRO PLANO TRANSPARENTE

Em AnáliseInvention Patent

Application data

Number

PI8606484

Type

Invention Patent

Filing

12/29/1986

Publication

10/20/1987

Progress at the INPI

  1. Filing12/29/86
  2. Publication10/20/87
  3. Examination12/20/88
  4. Allowance09/21/93
  5. Abandoned
  6. In force

The application was allowed on 09/21/1993 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 12/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PPG INDUSTRIES INC [US]

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Inventors

G. K. (pessoa física)

US

R. S. (pessoa física)

US

W. W. (pessoa física)

US

Technical data

Priority claims

US

815.494 · 01/02/1986

US

894.143 · 08/07/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/20/1988

RPI 948

Publicação do pedido de patente

#3.1

10/20/1987

RPI 887

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Arquivamento - Art. 38 §2° da LPI

#11.4

06/07/1994

RPI 1227

Notificação para pagamento de retribuição

#13.1

02/22/1994

RPI 1212

Deferimento

#9.1

09/21/1993

RPI 1190

Exigência - art. 36 da LPI

#6.1

01/19/1993

RPI 1155

Exigência - art. 36 da LPI

#6.1

03/24/1992

RPI 1112

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