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Official data from INPI

FIBRA OCA MONOLITICA,ESSENCIALMENTE INORGANICA,PROCESSO PARA SUA PREPARACAO,PROCESSO PARA DIFUSAO DE HIDROGENIO,CELULA DE DIFUSAO DE HIDROGENIO,E CELULA DE COMBUSTIVEL

ConcedidaInvention Patent

Application data

Number

PI7903008

Type

Invention Patent

Filing

05/16/1978

Publication

-

Progress at the INPI

  1. Filing05/16/78
  2. Publication
  3. Examination
  4. Allowance01/03/84
  5. Grant06/26/84
  6. Expired07/26/94

The letters patent expired on 07/26/1994: 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: 06/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MONSANTO CO

See this company's full portfolio

Inventors

D. E. (pessoa física)

G. T. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/24/1984

RPI 705

Deferimento

#9.1

01/03/1984

RPI 689

Exigência - art. 36 da LPI

#6.1

11/30/1982

RPI 632

6.2

03/30/1982

RPI 597

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

Pedido de licença compulsória

#20.1

10/20/1992

RPI 1142

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