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Official data from INPI

PROCESSO PARA A PREPARACAO DE PEROXIDOS ALCALINOS OU ALCALINOTERROSOS

ConcedidaInvention Patent

Application data

Number

PI8002696

Type

Invention Patent

Filing

05/05/1979

Publication

-

Progress at the INPI

  1. Filing05/05/79
  2. Publication
  3. Examination02/01/83
  4. Allowance06/12/84
  5. Grant12/26/84
  6. Expired06/13/95

The letters patent expired on 06/13/1995: 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: 12/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PEROXID CHEMIE GMBH

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Inventors

D. H. (pessoa física)

D. W. (pessoa física)

F. P. (pessoa física)

H. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/02/1984

RPI 728

Deferimento

#9.1

06/12/1984

RPI 712

Exigência - art. 36 da LPI

#6.1

01/17/1984

RPI 691

Solicitação de exame técnico

#4.1

02/01/1983

RPI 641

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

Pedido de licença compulsória

#20.1

02/16/1994

RPI 1211

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