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Official data from INPI

PROCESSO PARA APLIÇAÇÃO DE MATERIAL DE PULVERIZAÇÃO REFRATÁRIO.

Em AnáliseInvention Patent

Application data

Number

PI8505364

Type

Invention Patent

Filing

10/29/1985

Publication

08/05/1986

Progress at the INPI

  1. Filing10/29/85
  2. Publication08/05/86
  3. Examination11/18/86
  4. Allowance11/03/92
  5. Grant04/27/93
  6. Terminated12/24/96

The patent was granted on 04/27/1993 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: 11/18/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kurosaki Refractories Co., Ltd.

JP

See this company's full portfolio

Inventors

S. H. (pessoa física)

JP

S. H. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

59-230938 · 10/31/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/18/1986

RPI 839

Publicação do pedido de patente

#3.1

08/05/1986

RPI 824

Pedido de patente depositado

#2.1

01/14/1986

RPI 795

Anuidade - prazo legal encerrado

#18.2

12/24/1996

RPI 1360

Republicação - classificação IPC

#15.11

06/01/1993

RPI 1174

Concessão da patente

#16.1

04/27/1993

RPI 1169

Deferimento

#9.1

11/03/1992

RPI 1144

Exigência - art. 36 da LPI

#6.1

10/15/1991

RPI 1089

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