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Official data from INPI

PRODUÇÃO DE ESTERES DE SACAROSE-ÁCIDO GRAXO.

ConcedidaInvention Patent

Application data

Number

PI8104942

Type

Invention Patent

Filing

07/30/1981

Publication

04/20/1982

Progress at the INPI

  1. Filing07/30/81
  2. Publication04/20/82
  3. Examination07/05/83
  4. Allowance11/13/84
  5. Grant06/25/85
  6. Expired11/19/96

The letters patent expired on 11/19/1996: 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: 06/25/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dai-Ichi Kogyo Seiyaku Co., Ltd.

JP

Inventors

K. K. (pessoa física)

S. M. (pessoa física)

T. Y. (pessoa física)

Technical data

IPC Classification

Priority claims

JP

105637/80 · 07/31/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

03/26/1985

RPI 753

Deferimento

#9.1

11/13/1984

RPI 734

Exigência - art. 36 da LPI

#6.1

06/12/1984

RPI 712

Solicitação de exame técnico

#4.1

07/05/1983

RPI 663

Publicação do pedido de patente

#3.1

04/20/1982

RPI 600

Carta-patente expirada

#21.1

11/19/1996

RPI 1355

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