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Official data from INPI

TROCADOR DE CALOR

Em AnáliseInvention Patent

Application data

Number

PI8406771

Type

Invention Patent

Filing

12/28/1984

Publication

10/22/1985

Progress at the INPI

  1. Filing12/28/84
  2. Publication10/22/85
  3. Examination04/08/86
  4. Allowance08/11/87
  5. Grant03/29/88
  6. Terminated09/26/89

The patent was granted on 03/29/1988 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F.L. Smidth, S.A., Comércio e Indústria.

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Inventors

B. H. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8334649 · 12/30/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

09/26/1989

RPI 988

Concessão da patente

#16.1

03/29/1988

RPI 910

Notificação para pagamento de retribuição

#13.1

12/01/1987

RPI 893

Deferimento

#9.1

08/11/1987

RPI 877

Republicação - classificação IPC

#15.11

05/19/1987

RPI 865

Exigência - art. 36 da LPI

#6.1

11/18/1986

RPI 839

Solicitação de exame técnico

#4.1

04/08/1986

RPI 807

Publicação do pedido de patente

#3.1

10/22/1985

RPI 783

Pedido de patente depositado

#2.1

03/19/1985

RPI 752

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