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Official data from INPI

LAMINADO DE PANO OU OUTRO MATERIAL EM FORMA E UMA COMPOSIÇÃO DE POLIPROPILENO CRISTALINO QUE CONTÉM CARGA E, PROCESSO PARA FAZER UM LAMINADO

ConcedidaInvention Patent

Application data

Number

PI7908606

Type

Invention Patent

Filing

12/28/1979

Publication

-

Progress at the INPI

  1. Filing12/28/79
  2. Publication
  3. Examination09/08/82
  4. Allowance06/26/84
  5. Grant12/26/84
  6. Expired05/09/95

The letters patent expired on 05/09/1995: 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: 12/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

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Inventors

S. J. (pessoa física)

W. P. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

50242/78 · 12/29/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

06/26/1984

RPI 714

Exigência - art. 36 da LPI

#6.1

12/20/1983

RPI 687

Solicitação de exame técnico

#4.1

09/08/1982

RPI 620

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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