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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8003540

Type

Invention Patent

Filing

06/06/1980

Publication

-
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Progress at the INPI

  1. Filing06/06/80
  2. Publication
  3. Examination
  4. Allowance04/08/86
  5. Grant11/25/86
  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: 11/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Seiyaku Co. Ltd

JP

Inventors

I. C. (pessoa física)

J. K. (pessoa física)

M. W. (pessoa física)

Technical data

IPC Classification

C12P 7/14C12R 1/85

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/25/1986

RPI 840

Notificação para pagamento de retribuição

#13.1

08/12/1986

RPI 825

Deferimento

#9.1

04/08/1986

RPI 807

Exigência - art. 36 da LPI

#6.1

11/20/1984

RPI 735

Exigência - art. 36 da LPI

#6.1

02/14/1984

RPI 695

6.2

11/16/1982

RPI 630

Carta-patente expirada

#21.1

09/12/1995

RPI 1293

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