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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8005962

Type

Invention Patent

Filing

09/18/1980

Publication

-

Progress at the INPI

  1. Filing09/18/80
  2. Publication
  3. Examination
  4. Allowance07/12/83
  5. Grant12/27/83
  6. Expired11/07/95

The letters patent expired on 11/07/1995: 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: 08/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mitsubishi Chemical Industries Limited

JP

Inventors

C. M. (pessoa física)

S. T. (pessoa física)

Y. T. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

08/08/1989

RPI 981

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/12/1983

RPI 664

6.2

11/30/1982

RPI 632

Carta-patente expirada

#21.1

11/07/1995

RPI 1301

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