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Official data from INPI

PROCESSO DE FLUORACAO EM FASE LIQUIDA

ConcedidaInvention Patent

Application data

Number

PI7805684

Type

Invention Patent

Filing

09/01/1977

Publication

-

Progress at the INPI

  1. Filing09/01/77
  2. Publication
  3. Examination
  4. Allowance09/10/85
  5. Grant04/29/86
  6. Expired05/03/94

The letters patent expired on 05/03/1994: 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOOKER CHEMICALS PLASTICS CORP

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Inventors

S. L. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

01/14/1986

RPI 795

Deferimento

#9.1

09/10/1985

RPI 777

Exigência - art. 36 da LPI

#6.1

10/16/1984

RPI 730

14.4

04/10/1984

RPI 703

6.3

11/22/1983

RPI 683

Exigência - art. 36 da LPI

#6.1

09/13/1983

RPI 673

Exigência - art. 36 da LPI

#6.1

02/08/1983

RPI 642

6.2

10/20/1981

RPI 574

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

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