Official data from INPI

TÚNEL DE AQUECIMENTO.

ConcedidaInvention Patent

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Application data

Number

PI8302752

Type

Invention Patent

Filing

05/25/1983

Publication

01/24/1984

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Progress at the INPI

Filing05/25/83
Publication01/24/84
Examination05/13/86
Allowance12/29/87
Grant07/26/88
Terminated12/17/96

The patent was granted on 07/26/1988 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. P. (pessoa física)

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

82 09260 · 05/27/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

02/24/1987

RPI 853

Solicitação de exame técnico

#4.1

05/13/1986

RPI 812

Publicação do pedido de patente

#3.1

01/24/1984

RPI 692

Pedido de patente depositado

#2.1

07/12/1983

RPI 664

Anuidade - prazo legal encerrado

#18.2

12/17/1996

RPI 1359

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