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Official data from INPI

PROCESSO PARA MELHORAR AS PROPRIEDADES DE TENSAO SUPERFICIAL DE SOLUCOES DE TENSO-ATIVOS E COMPOSICAO TENSO-ATIVA

ConcedidaInvention Patent

Application data

Number

PI7708741

Type

Invention Patent

Filing

12/30/1976

Publication

-

Progress at the INPI

  1. Filing12/30/76
  2. Publication
  3. Examination
  4. Allowance10/06/87
  5. Grant05/31/88
  6. Terminated01/21/92

The patent was granted on 05/31/1988 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CIBA GEIGY AG

See this company's full portfolio

Inventors

F. R. (pessoa física)

N. P. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

02/09/1988

RPI 903

Deferimento

#9.1

10/06/1987

RPI 885

Republicação - classificação IPC

#15.11

03/13/1984

RPI 699

Exigência - art. 36 da LPI

#6.1

08/16/1983

RPI 669

Exigência - art. 36 da LPI

#6.1

01/25/1983

RPI 640

6.2

02/24/1982

RPI 592

Anuidade - prazo legal encerrado

#18.2

01/21/1992

RPI 1103

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