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Official data from INPI

COMPOSIÇÀO BIOCIDAMENTE ATIVAS E PROCESSO DE PREPARAÇÀO DE DERIVADOS DE ARIL-HIDRAZONA

ConcedidaInvention Patent

Application data

Number

PI7706586

Type

Invention Patent

Filing

10/03/1977

Publication

-

Progress at the INPI

  1. Filing10/03/77
  2. Publication
  3. Examination
  4. Allowance08/17/82
  5. Grant02/22/83
  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: 02/22/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

M. C. (pessoa física)

GB

P. H. (pessoa física)

GB

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

12/28/1982

RPI 636

Deferimento

#9.1

08/17/1982

RPI 617

Conhecimento de parecer técnico

#7.1

07/20/1982

RPI 613

15.0

01/12/1982

RPI 586

Exigência - art. 36 da LPI

#6.1

12/08/1981

RPI 581

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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