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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE POLÍMEROS DE OLEFINA ALTAMENTE CRISTALINOS.

ConcedidaInvention Patent

Application data

Number

PI8003873

Type

Invention Patent

Filing

06/20/1980

Publication

-

Progress at the INPI

  1. Filing06/20/80
  2. Publication
  3. Examination03/22/83
  4. Allowance08/07/84
  5. Grant03/26/85
  6. Expired09/12/95

The letters patent expired on 09/12/1995: 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: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sumitomo Chemical Company, Limited.

JP

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Inventors

A. S. (pessoa física)

H. M. (pessoa física)

M. O. (pessoa física)

T. S. (pessoa física)

Y. F. (pessoa física)

Pessoa física

Technical data

IPC Classification

Priority claims

JP

62141/80 · 05/10/1980

JP

7545/80 · 01/24/1980

JP

7547/80 · 01/24/1980

JP

78604/79 · 06/20/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

03/22/1983

RPI 648

Carta-patente expirada

#21.1

09/12/1995

RPI 1293

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