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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8003776

Type

Invention Patent

Filing

06/17/1980

Publication

-
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Progress at the INPI

  1. Filing06/17/80
  2. Publication
  3. Examination
  4. Allowance02/12/86
  5. Grant08/26/86
  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.

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Latest action published by the INPI: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mitsui Petrochemical Industries Ltd.

JP

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Inventors

H. K. (pessoa física)

M. K. (pessoa física)

N. K. (pessoa física)

Technical data

IPC Classification

C08F 10/00C08F 4/64

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/12/1986

RPI 799

Exigência - art. 36 da LPI

#6.1

07/02/1985

RPI 767

Exigência - art. 36 da LPI

#6.1

11/27/1984

RPI 736

Exigência - art. 36 da LPI

#6.1

02/07/1984

RPI 694

6.2

11/23/1982

RPI 631

Pedido de certificado de adição de invenção

#5.1

10/20/1981

RPI 574

Carta-patente expirada

#21.1

09/12/1995

RPI 1293

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