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Official data from INPI

DISPOSITIVO PARA TROCA DE CALOR ENTRE GAS E PRODUTO DE GRANULACAO FINA

ArquivadaInvention Patent

Application data

Number

PI8505795

Type

Invention Patent

Filing

11/23/1984

Publication

08/12/1986

Progress at the INPI

  1. Filing11/23/84
  2. Publication08/12/86
  3. Examination08/18/87
  4. Allowance02/28/89
  5. Abandoned
  6. In force

The application was allowed on 02/28/1989 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 12/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KRUPP POLYSIUS AG [DE]

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Inventors

H. O. (pessoa física)

S. H. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

12/12/1989

RPI 999

Notificação para pagamento de retribuição

#13.1

07/11/1989

RPI 977

Deferimento

#9.1

02/28/1989

RPI 958

Solicitação de exame técnico

#4.1

08/18/1987

RPI 878

Publicação do pedido de patente

#3.1

08/12/1986

RPI 825

Pedido de patente depositado

#2.1

01/28/1986

RPI 797

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