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Official data from INPI

COMPOSTOS INTERMETALICOS DE ALCOXIDOS DE OXIDOS DE METAIS DE TRANSICAO POLIMEROS

ConcedidaInvention Patent
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Application data

Number

PI8107638

Type

Invention Patent

Filing

11/24/1980

Publication

08/24/1982
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Progress at the INPI

  1. Filing11/24/80
  2. Publication08/24/82
  3. Examination09/25/84
  4. Allowance12/29/87
  5. Grant06/28/88
  6. Expired08/19/08

The letters patent expired on 08/19/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NAT DISTILLERS CHEM CORP [US]

Inventors

S. N. (pessoa física)

Technical data

IPC Classification

C08F 10/00C08F 4/66

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

06/18/1985

RPI 765

Solicitação de exame técnico

#4.1

09/25/1984

RPI 727

Publicação do pedido de patente

#3.1

08/24/1982

RPI 618

Pedido de patente depositado

#2.1

01/05/1982

RPI 585

Carta-patente expirada

#21.1

Patente extinta em 24/11/96

08/19/2008

RPI 1963

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