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Official data from INPI

PROCESSO DE FLUORACAO EM FASE LIQUIDA

ConcedidaInvention Patent

Application data

Number

PI7706034

Type

Invention Patent

Filing

11/01/1976

Publication

-

Progress at the INPI

  1. Filing11/01/76
  2. Publication
  3. Examination
  4. Allowance07/09/85
  5. Grant02/04/86
  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: 02/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOOKER CHEMICALS PLASTICS CORP

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Inventors

B. Y. (pessoa física)

R. S. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

10/09/1984

RPI 729

14.4

12/06/1983

RPI 685

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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