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Official data from INPI

QUEIMADOR PARA A FUNDIÇÃO DE BATELADAS DE VIDRO E SIMILARES E PROCESSO DE AQUECIMENTO DE UMA SUPERFÍCIE DE MATERIAL

Em AnáliseInvention Patent

Application data

Number

PI8700780

Type

Invention Patent

Filing

02/19/1987

Publication

12/22/1987

Progress at the INPI

  1. Filing02/19/87
  2. Publication12/22/87
  3. Examination10/25/88
  4. Allowance03/12/91
  5. Grant09/24/91
  6. Terminated10/17/95

The patent was granted on 09/24/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/25/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PPG Industries, Inc.

US

See this company's full portfolio

Inventors

Y. T. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

830.783 · 02/19/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/25/1988

RPI 940

Publicação do pedido de patente

#3.1

12/22/1987

RPI 896

Pedido de patente depositado

#2.1

06/09/1987

RPI 868

Anuidade - prazo legal encerrado

#18.2

10/17/1995

RPI 1298

Concessão da patente

#16.1

09/24/1991

RPI 1086

Notificação para pagamento de retribuição

#13.1

06/25/1991

RPI 1073

Deferimento

#9.1

03/12/1991

RPI 1058

Exigência - art. 36 da LPI

#6.1

09/18/1990

RPI 1033

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