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Official data from INPI

APARELHO PARA EXTRUSAO DE UM MINGAU DE ALIMENTOS,APARELHOS PARA CONTINUAMENTE COZER SOB PRESSAO,EXTRUDAR E FORMA BOLINHOS DE UM PRODUTO ALIMENTICIO E PARAFUSO DE EXTRUSAO

ConcedidaInvention Patent

Application data

Number

PI8101637

Type

Invention Patent

Filing

05/29/1980

Publication

01/12/1982

Progress at the INPI

  1. Filing05/29/80
  2. Publication01/12/82
  3. Examination05/18/82
  4. Allowance10/22/85
  5. Grant06/24/86
  6. Terminated09/25/90

The patent was granted on 06/24/1986 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KOPPERS CO INC

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Inventors

B. D. (pessoa física)

E. W. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Deferimento

#9.1

10/22/1985

RPI 783

Exigência - art. 36 da LPI

#6.1

01/08/1985

RPI 742

Solicitação de exame técnico

#4.1

05/18/1982

RPI 604

Publicação do pedido de patente

#3.1

01/12/1982

RPI 586

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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