Official data from INPI

APARELHO PARA OBTENCAO DE GAS COMBUSTIVEL

Em AnáliseInvention Patent

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Application data

Number

PI8105315

Type

Invention Patent

Filing

08/20/1981

Publication

03/29/1983

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Progress at the INPI

Filing08/20/81
Publication03/29/83
Examination08/09/83
Allowance12/16/86
Grant08/25/87
Terminated07/12/88

The patent was granted on 08/25/1987 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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SERWACZAK [BR]

Inventors

S. [. (pessoa física)

Technical data

IPC Classification

C10J 3/20

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Conhecimento de parecer técnico

#7.1

04/15/1986

RPI 808

Solicitação de exame técnico

#4.1

08/09/1983

RPI 668

Publicação do pedido de patente

#3.1

03/29/1983

RPI 649

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