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Official data from INPI

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

ConcedidaInvention Patent

Application data

Number

PI7705100

Type

Invention Patent

Filing

08/03/1976

Publication

-

Progress at the INPI

  1. Filing08/03/76
  2. Publication
  3. Examination
  4. Allowance05/10/83
  5. Grant11/29/83
  6. Terminated01/21/92

The patent was granted on 11/29/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOECHST AG

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Inventors

H. E. (pessoa física)

M. F. (pessoa física)

S. H. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/10/1983

RPI 655

Exigência - art. 36 da LPI

#6.1

09/14/1982

RPI 621

6.2

12/29/1981

RPI 584

Anuidade - prazo legal encerrado

#18.2

01/21/1992

RPI 1103

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