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Official data from INPI

PROCESSO E APARELHO PARA TRATAMENTO TÉRMICO DE MATERIAL EM PARTÍCULAS.

ConcedidaInvention Patent

Application data

Number

PI8000067

Type

Invention Patent

Filing

01/07/1980

Publication

-

Progress at the INPI

  1. Filing01/07/80
  2. Publication
  3. Examination
  4. Allowance04/16/85
  5. Grant10/29/85
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 10/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BPB Industries Limited

Inventors

T. C. (pessoa física)

W. A. (pessoa física)

Technical data

Priority claims

GB

79 00593 · 01/08/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1985

RPI 784

Notificação para pagamento de retribuição

#13.1

08/06/1985

RPI 772

Deferimento

#9.1

04/16/1985

RPI 756

Exigência - art. 36 da LPI

#6.1

11/16/1983

RPI 682

6.2

11/23/1982

RPI 631

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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