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Official data from INPI

COMPOSIÇÃO DE CIMENTO PORTLAND E PROCESSO PARA FABRICAR O MESMO

Em ExigênciaInvention Patent
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Application data

Number

PI8301892

Type

Invention Patent

Filing

04/13/1983

Publication

11/20/1984
View on INPI

Progress at the INPI

  1. Filing04/13/83
  2. Publication11/20/84
  3. Examination03/26/85
  4. Allowance02/01/90
  5. Grant09/25/90
  6. Terminated04/25/95

The patent was granted on 09/25/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Thai-Han Co., Ltd.

TH

Inventors

H. P. (pessoa física)

KR

Technical data

IPC Classification

C04B 24/36C04B 7/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

07/18/1989

RPI 978

Exigência - art. 36 da LPI

#6.1

01/03/1989

RPI 950

Solicitação de exame técnico

#4.1

03/26/1985

RPI 753

Publicação do pedido de patente

#3.1

11/20/1984

RPI 735

Pedido de patente depositado

#2.1

05/31/1983

RPI 658

Anuidade - prazo legal encerrado

#18.2

04/25/1995

RPI 1273

Republicação - classificação IPC

#15.11

02/26/1991

RPI 1056

Concessão da patente

#16.1

09/25/1990

RPI 1034

Notificação para pagamento de retribuição

#13.1

05/22/1990

RPI 1019

Deferimento

#9.1

02/01/1990

RPI 1004

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