Official data from INPI

SISTEMA DE SILOS SEMI-SUBTERRÂNEOS HERMÉTICOS E ISOTÉRMICOS

Prazo de SigiloInvention Patent

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Application data

Number

PI8903559

Type

Invention Patent

Filing

07/13/1989

Publication

01/15/1991

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Progress at the INPI

Filing07/13/89
Publication01/15/91
Abandoned
Allowance
Grant
In force

The application was abandoned: examination was not requested within the 36 months following the 07/13/1989 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Teknika Projetos e Construções Ltda

SP, BR

Inventors

W. B. (pessoa física)

Technical data

IPC Classification

E04H 7/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/21/1989

RPI 996

Arquivamento - Art. 33 da LPI

#11.1

03/16/1993

RPI 1163

Publicação do pedido de patente

#3.1

01/15/1991

RPI 1050

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