Official data from INPI

SEM TITULO

ConcedidaInvention Patent

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Application data

Number

PI8102766

Type

Invention Patent

Filing

05/06/1981

Publication

12/14/1982

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Progress at the INPI

Filing05/06/81
Publication12/14/82
Examination02/21/84
Allowance10/29/86
Grant07/28/87
Expired10/01/96

The letters patent expired on 10/01/1996: 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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. B. (pessoa física)

M. P. (pessoa física)

W. L. (pessoa física)

Inventors

B. A. (pessoa física)

L. J. (pessoa física)

P. M. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

03/31/1987

RPI 858

Deferimento

#9.1

10/29/1986

RPI 836

8.1

03/04/1986

RPI 802

Exigência - art. 36 da LPI

#6.1

06/18/1985

RPI 765

Exigência - art. 36 da LPI

#6.1

12/04/1984

RPI 737

Solicitação de exame técnico

#4.1

02/21/1984

RPI 696

Publicação do pedido de patente

#3.1

12/14/1982

RPI 634

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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