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Official data from INPI

PROCESSO PARA SEPARAR GRANULOS REDONDOS DISPERSADOS DE METAL,LIGA DE METAL,MAGNESIO OU LIGA DE MAGNESO APRISIONADOS EM UMA MATRIZ FRIAVEL CONTIGUA SOLIDIFICADA

ConcedidaInvention Patent

Application data

Number

PI7905425

Type

Invention Patent

Filing

08/25/1978

Publication

-

Progress at the INPI

  1. Filing08/25/78
  2. Publication
  3. Examination06/29/82
  4. Allowance08/09/83
  5. Grant02/28/84
  6. Terminated01/28/92

The patent was granted on 02/28/1984 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: 02/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO

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Inventors

F. B. (pessoa física)

G. W. (pessoa física)

P. B. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1984

RPI 697

Notificação para pagamento de retribuição

#13.1

11/29/1983

RPI 684

Deferimento

#9.1

08/09/1983

RPI 668

Exigência - art. 36 da LPI

#6.1

02/08/1983

RPI 642

Solicitação de exame técnico

#4.1

06/29/1982

RPI 610

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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