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Official data from INPI

COPOLIMEROS BIOLOGICAMENTE ATIVOS;COMPOSICAO DE REVESTIMENTO LIQUIDA PARA CONTROLAR O ESTABELECIMENTO E CRESCIMENTO DE ORGANISMOS INFESTANTES

Em AnáliseInvention Patent

Application data

Number

PI7707215

Type

Invention Patent

Filing

11/02/1976

Publication

-

Progress at the INPI

  1. Filing11/02/76
  2. Publication
  3. Examination
  4. Allowance05/10/83
  5. Grant11/29/83
  6. Terminated12/15/87

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.

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Latest action published by the INPI: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M & T CHEMICALS INC

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Inventors

B. J. (pessoa física)

R. D. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

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

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