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Official data from INPI

COMPOSIÇÃO ISENTA DE FLUORETO, ÁCIDA, AQUOSA, ADEQUADA PARA A LIMPEZA DE SUPERFÍCIES DE ALUMÍNIO E CONCENTRADO DE TAL COMPOSIÇÃO

ConcedidaInvention Patent

Application data

Number

PI8301743

Type

Invention Patent

Filing

04/06/1983

Publication

12/13/1983

Progress at the INPI

  1. Filing04/06/83
  2. Publication12/13/83
  3. Examination09/17/85
  4. Allowance09/06/88
  5. Grant06/27/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 06/27/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Parker Chemical Company

US

See this company's full portfolio

Inventors

P. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

366.450 · 04/07/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/27/1989

RPI 975

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

Exigência - art. 36 da LPI

#6.1

03/01/1988

RPI 906

Conhecimento de parecer técnico

#7.1

07/28/1987

RPI 875

14.1

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

09/17/1985

RPI 778

Publicação do pedido de patente

#3.1

12/13/1983

RPI 686

Pedido de patente depositado

#2.1

05/24/1983

RPI 657

Carta-patente expirada

#21.1

Patente extinta em 06/04/98

07/01/2008

RPI 1956

Pedido de licença compulsória

#20.1

10/04/1994

RPI 1244

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