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Official data from INPI

PROCESSO PARA A OBTENCAO DE COMPOSTO,APLICACAO DO MATERIAL DE AMASSAMENTO OBTIDO EM TAL PROCESSO,PROCESSO PARA A OBTENCAO DE CORANTES AZOICOS E SEUS CORANTES COMPLEXOS METALICOS,E CORANTES ASSIM OBTIDOS

ConcedidaInvention Patent

Application data

Number

PI7705102

Type

Invention Patent

Filing

08/03/1976

Publication

-

Progress at the INPI

  1. Filing08/03/76
  2. Publication
  3. Examination
  4. Allowance01/15/85
  5. Grant07/30/85
  6. Expired07/13/93

The letters patent expired on 07/13/1993: 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: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOECHST AG

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Inventors

H. E. (pessoa física)

S. H. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

05/07/1985

RPI 759

Deferimento

#9.1

01/15/1985

RPI 743

Exigência - art. 36 da LPI

#6.1

03/07/1984

RPI 698

Exigência - art. 36 da LPI

#6.1

09/20/1983

RPI 674

Conhecimento de parecer técnico

#7.1

01/11/1983

RPI 638

6.2

01/26/1982

RPI 588

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

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