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Official data from INPI

COMPOSICAO DE RESINA A BASE DE POLIETILENO, CONTENDO UMA ALTA CONCENTRACAO DE MATERIAL INORGANICO

ConcedidaInvention Patent

Application data

Number

PI7908795

Type

Invention Patent

Filing

08/29/1978

Publication

-

Progress at the INPI

  1. Filing08/29/78
  2. Publication
  3. Examination04/13/82
  4. Allowance05/17/88
  5. Grant02/28/89
  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: 02/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

FURUKAWA ELECTRIC CO LTD

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Inventors

H. N. (pessoa física)

I. N. (pessoa física)

M. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1989

RPI 958

Notificação para pagamento de retribuição

#13.1

11/16/1988

RPI 943

9.1.3

07/12/1988

RPI 925

Deferimento

#9.1

05/17/1988

RPI 917

Exigência - art. 36 da LPI

#6.1

08/18/1987

RPI 878

Conhecimento de parecer técnico

#7.1

05/10/1983

RPI 655

Solicitação de exame técnico

#4.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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