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Official data from INPI

COMPOSICOES POLIMERIZAVEIS,PROCESSO PARA PREPARACAO DE UM MONOMERO,E PROCESSO PARA SELAGEM OU ADESAO DE SUPERFICIES

ConcedidaInvention Patent

Application data

Number

PI7601485

Type

Invention Patent

Filing

03/12/1975

Publication

-

Progress at the INPI

  1. Filing03/12/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant08/31/82
  6. Expired08/03/93

The letters patent expired on 08/03/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 08/31/1982. We update with every new RPI gazette, published weekly.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/31/1982

RPI 619

Notificação para pagamento de retribuição

#13.1

02/02/1982

RPI 589

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

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