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Official data from INPI

PROCESSO PARA PREPARAR UM COPOLIMERO RESINOSO ACOPLADO EM BLOCO DE UM COMPOSTO AROMATICO MONOVINIL-SUBSTITUIDO E UM DIENO CONJUGADO;E PROCESSO PARA PREPARAR UM POLIMERO

ConcedidaInvention Patent

Application data

Number

PI7703793

Type

Invention Patent

Filing

06/24/1976

Publication

-

Progress at the INPI

  1. Filing06/24/76
  2. Publication
  3. Examination
  4. Allowance03/07/84
  5. Grant09/25/84
  6. Expired07/06/93

The letters patent expired on 07/06/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/25/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PHILLIPS PETROLEUM CO

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Inventors

K. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/25/1984

RPI 727

Notificação para pagamento de retribuição

#13.1

06/26/1984

RPI 714

Deferimento

#9.1

03/07/1984

RPI 698

Exigência - art. 36 da LPI

#6.1

10/11/1983

RPI 677

Exigência - art. 36 da LPI

#6.1

02/01/1983

RPI 641

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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