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Official data from INPI

COMPOSIÇÃO ADITIVA ANTI-CORROSIVA E ANTI-OXIDANTE PARA FLUIDOS FUNCIONAIS, CONCENTRADO ADITIVO E FLUIDO FUNCIONAL

Em AnáliseInvention Patent

Application data

Number

PI8406498

Type

Invention Patent

Filing

04/09/1984

Publication

03/12/1985

Progress at the INPI

  1. Filing04/09/84
  2. Publication03/12/85
  3. Examination06/16/87
  4. Allowance07/16/91
  5. Grant04/28/92
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. C. (pessoa física)

US

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Inventors

K. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

486,640 · 04/20/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

10/17/1989

RPI 991

Solicitação de exame técnico

#4.1

06/16/1987

RPI 869

Notificação de entrada na fase nacional - PCT

#1.3

03/12/1985

RPI 751

Carta-patente expirada

#21.1

Patente extinta em 09/04/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

04/28/1992

RPI 1117

Notificação para pagamento de retribuição

#13.1

11/12/1991

RPI 1093

Deferimento

#9.1

07/16/1991

RPI 1076

Exigência - art. 36 da LPI

#6.1

11/27/1990

RPI 1043

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