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Official data from INPI

COMPOSICAO DA QUAL UM PRODUTO DE POLIURETANO CURADO ESTENDIDO DE OLEO MINERAL PODE SER FORMADO E COMPREENDENDO,PARA EVENTUAL FORMACAO DE POLIURETANO,UM PREPOLIMERO ACABADO DE ISOCIANATO EM MISTURA COM POLIOL,PROCESSO PARA REMOVER CONTAMINANTES AQUOSOS DOS ESPACOS LIVRES INTERIORES DE UM DISPOSITIVO ELETRICO ISOLADO,E DISPOSITIVO ELETRICO ISOLADO

Em AnáliseInvention Patent

Application data

Number

PI7607556

Type

Invention Patent

Filing

11/17/1975

Publication

-

Progress at the INPI

  1. Filing11/17/75
  2. Publication
  3. Examination
  4. Allowance02/09/82
  5. Grant10/26/82
  6. Terminated11/24/87

The patent was granted on 10/26/1982 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: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NL INDUSTRIES INC

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Inventors

B. M. (pessoa física)

K. T. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/24/1987

RPI 892

Concessão da patente

#16.1

10/26/1982

RPI 627

Notificação para pagamento de retribuição

#13.1

06/08/1982

RPI 607

Deferimento

#9.1

02/09/1982

RPI 590

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