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Official data from INPI

CATALISADOR PARA DESIDROGENACAO DE COMPOSTOS ORGANICOS,EM PARTICULAR AMINAS,TIOIS A ALCOOIS,E PROCESSO PARA SUA PREPARACAO

ConcedidaInvention Patent

Application data

Number

PI7804735

Type

Invention Patent

Filing

07/22/1977

Publication

-

Progress at the INPI

  1. Filing07/22/77
  2. Publication
  3. Examination
  4. Allowance01/31/84
  5. Grant08/28/84
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 08/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

L. H. (pessoa física)

M. C. (pessoa física)

V. J. (pessoa física)

Inventors

L. H. (pessoa física)

M. C. (pessoa física)

V. J. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

05/15/1984

RPI 708

Deferimento

#9.1

01/31/1984

RPI 693

Exigência - art. 36 da LPI

#6.1

08/31/1982

RPI 619

6.2

11/10/1981

RPI 577

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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