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Official data from INPI

COMPOSICAO CATALITICA DE DOIS COMPONENTES PARA PREPARAR POLIMEROS DE ISOCIANURATO MODIFICADOS COM URETANO,RIGIDOS,CELULARES

Em AnáliseInvention Patent

Application data

Number

PI7606107

Type

Invention Patent

Filing

09/16/1975

Publication

-

Progress at the INPI

  1. Filing09/16/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant11/10/81
  6. Terminated09/18/90

The patent was granted on 11/10/1981 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: 09/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M & T CHEMICALS INC

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Inventors

E. W. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

09/30/1986

RPI 832

Pedido de licença compulsória

#20.1

09/23/1986

RPI 831

Concessão da patente

#16.1

11/10/1981

RPI 577

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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