Official data from INPI

PROCESSO PARA PRODUCAO DE CIMENTO HIDRAULICO E PRECURSORES DE CIMENTO

Em AnáliseInvention Patent

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Application data

Number

PI7707431

Type

Invention Patent

Filing

07/09/1977

Publication

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Progress at the INPI

Filing07/09/77
Publication
Examination
Allowance02/16/83
Grant07/26/83
Terminated12/15/87

The patent was granted on 07/26/1983 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TETRONICS RES & DEV CO LTD

Inventors

T. J. (pessoa física)

Technical data

IPC Classification

C04B 7/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

06/14/1983

RPI 660

Deferimento

#9.1

02/16/1983

RPI 643

15.0

01/19/1982

RPI 587

Exigência - art. 36 da LPI

#6.1

11/17/1981

RPI 578

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