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Official data from INPI

PROCESSO PARA PREPARAR MATERIAIS RESISTENTES A ALTA TEMPERATURA E RESISTENTES À CORROSÃO

Em ExigênciaInvention Patent

Application data

Number

PI8506214

Type

Invention Patent

Filing

03/29/1985

Publication

04/15/1986

Progress at the INPI

  1. Filing03/29/85
  2. Publication04/15/86
  3. Examination07/28/87
  4. Allowance08/28/90
  5. Grant03/26/91
  6. Terminated08/15/95

The patent was granted on 03/26/1991 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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Y. L. (pessoa física)

SE

Inventors

Y. L. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8401757-3 · 03/30/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

10/17/1989

RPI 991

Solicitação de exame técnico

#4.1

07/28/1987

RPI 875

Notificação de entrada na fase nacional - PCT

#1.3

04/15/1986

RPI 808

Anuidade - prazo legal encerrado

#18.2

08/15/1995

RPI 1289

Republicação - classificação IPC

#15.11

07/02/1991

RPI 1074

Concessão da patente

#16.1

03/26/1991

RPI 1060

Notificação para pagamento de retribuição

#13.1

12/11/1990

RPI 1045

Deferimento

#9.1

08/28/1990

RPI 1030

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