Official data from INPI

SEM TITULO

ConcedidaInvention Patent

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Application data

Number

PI8206018

Type

Invention Patent

Filing

10/15/1982

Publication

09/13/1983

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Progress at the INPI

Filing10/15/82
Publication09/13/83
Examination12/27/83
Allowance08/20/85
Grant04/29/86
Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. I. (pessoa física)

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Inventors

G. D. (pessoa física)

Technical data

IPC Classification

F16K 11/00 F16K 49/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

12/24/1985

RPI 792

Deferimento

#9.1

08/20/1985

RPI 774

Exigência - art. 36 da LPI

#6.1

12/11/1984

RPI 738

Solicitação de exame técnico

#4.1

12/27/1983

RPI 688

Publicação do pedido de patente

#3.1

09/13/1983

RPI 673

Pedido de patente depositado

#2.1

12/07/1982

RPI 633

Carta-patente expirada

#21.1

Patente extinta em 15/10/97

07/01/2008

RPI 1956

20.4

10/16/1990

RPI 1037

20.7