Official data from INPI

MECANISMO DE CLARIFICAÇÀO

PublicadaInvention Patent

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Application data

Number

PI8704714

Type

Invention Patent

Filing

09/10/1987

Publication

05/03/1988

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Progress at the INPI

Filing09/10/87
Publication05/03/88
Examination09/25/90
Allowance05/04/93
Grant09/28/93
Terminated06/25/96

The patent was granted on 09/28/1993 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: 05/03/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. K. (pessoa física)

Inventors

M. K. (pessoa física)

S. O. (pessoa física)

Y. S. (pessoa física)

Technical data

IPC Classification

C02F 3/06 C02F 3/10

Priority claims

212764/86 · 09/11/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/03/1988

RPI 915

Pedido de patente depositado

#2.1

12/01/1987

RPI 893

Anuidade - prazo legal encerrado

#18.2

06/25/1996

RPI 1334

Concessão da patente

#16.1

09/28/1993

RPI 1191

Deferimento

#9.1

05/04/1993

RPI 1170

Exigência - art. 36 da LPI

#6.1

10/06/1992

RPI 1140

Solicitação de exame técnico

#4.1

09/25/1990

RPI 1034

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MÁQUINA DE ESCAVAÇÃO DE ORIFÍCIO VERTICAL

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