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Official data from INPI

PROCESSO DE PREPARAÇÃO DE UM CORPO VÍTREO CRISTALINO

Em AnáliseInvention Patent

Application data

Number

PI8503304

Type

Invention Patent

Filing

07/05/1985

Publication

02/17/1987

Progress at the INPI

  1. Filing07/05/85
  2. Publication02/17/87
  3. Examination02/14/89
  4. Allowance08/28/90
  5. Grant04/30/91
  6. Terminated07/25/95

The patent was granted on 04/30/1991 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: 02/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cerâmica e Velas de Ignição NGK do Brasil S/A

SP, BR

See this company's full portfolio

Inventors

M. Y. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

02/14/1989

RPI 956

Publicação do pedido de patente

#3.1

02/17/1987

RPI 852

Pedido de patente depositado

#2.1

09/17/1985

RPI 778

Anuidade - prazo legal encerrado

#18.2

07/25/1995

RPI 1286

Concessão da patente

#16.1

04/30/1991

RPI 1065

Notificação para pagamento de retribuição

#13.1

12/11/1990

RPI 1045

Deferimento

#9.1

08/28/1990

RPI 1030

Exigência - art. 36 da LPI

#6.1

02/01/1990

RPI 1004

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