Official data from INPI

PROCESSO E CONJUNTO PARA FORMAR UM ESPAÇO COBERTO E FECHADO.

Em AnáliseInvention Patent

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Application data

Number

PI8102777

Type

Invention Patent

Filing

05/05/1981

Publication

01/26/1982

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Progress at the INPI

Filing05/05/81
Publication01/26/82
Examination06/14/83
Allowance07/09/85
Grant02/25/86
Terminated05/24/88

The patent was granted on 02/25/1986 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: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Anglo American Corporation Of South Africa Limited

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Inventors

A. G. (pessoa física)

Technical data

IPC Classification

E04B 1/35 E04H 1/12

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/24/1988

RPI 918

Concessão da patente

#16.1

02/25/1986

RPI 801

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

01/02/1985

RPI 741

Solicitação de exame técnico

#4.1

06/14/1983

RPI 660

Publicação do pedido de patente

#3.1