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Official data from INPI

Dispositivo para refrigerar as vias de rodas de translação e/ou os lados internos de paredes laterais de um forno de cozimento de wafers.

ConcedidaInvention Patent

Application data

Number

PI8502174

Type

Invention Patent

Filing

05/07/1985

Publication

01/07/1986

Progress at the INPI

  1. Filing05/07/85
  2. Publication01/07/86
  3. Examination06/09/87
  4. Allowance12/29/87
  5. Grant09/27/88
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Franz Haas Waffelmaschinen Industriegesellschaft m.b.H

AT

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Inventors

H. J. (pessoa física)

H. J. (pessoa física)

S. H. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Solicitação de exame técnico

#4.1

06/09/1987

RPI 868

Publicação do pedido de patente

#3.1

01/07/1986

RPI 794

Pedido de patente depositado

#2.1

07/09/1985

RPI 768

Carta-patente expirada

#21.1

Patente extinta em 07/05/2000

07/15/2008

RPI 1958

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