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Official data from INPI

PROCESSO PARA A PRODUCAO DE DERIVADOS DE UREIA

Em AnáliseInvention Patent

Application data

Number

PI7802618

Type

Invention Patent

Filing

04/28/1977

Publication

-

Progress at the INPI

  1. Filing04/28/77
  2. Publication
  3. Examination
  4. Allowance07/19/83
  5. Grant01/31/84
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SHIONOGI & CO

Inventors

M. Y. (pessoa física)

M. A. (pessoa física)

S. T. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

10/17/1989

RPI 991

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Deferimento

#9.1

07/19/1983

RPI 665

Exigência - art. 36 da LPI

#6.1

01/18/1983

RPI 639

15.0

08/10/1982

RPI 616

Exigência - art. 36 da LPI

#6.1

07/20/1982

RPI 613

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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