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Official data from INPI

COMPOSIÇÃO LUBRIFICANTE E COMPOSIÇÃO DE MISTURA LUBRIFICANTE-COMBUSTÍVEL

Em AnáliseInvention Patent

Application data

Number

PI8507094

Type

Invention Patent

Filing

11/20/1985

Publication

03/31/1987

Progress at the INPI

  1. Filing11/20/85
  2. Publication03/31/87
  3. Examination07/26/88
  4. Allowance09/13/94
  5. Grant05/30/95
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. C. (pessoa física)

US

See this company's full portfolio

Inventors

K. D. (pessoa física)

US

Technical data

Priority claims

US

673.687 · 11/21/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/26/1988

RPI 927

Notificação de entrada na fase nacional - PCT

#1.3

03/31/1987

RPI 858

Carta-patente expirada

#21.1

Patente extinta em 20/11/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

05/30/1995

RPI 1278

Notificação para pagamento de retribuição

#13.1

01/17/1995

RPI 1259

Deferimento

#9.1

09/13/1994

RPI 1241

Exigência - art. 36 da LPI

#6.1

02/24/1993

RPI 1160

Conhecimento de parecer técnico

#7.1

02/25/1992

RPI 1108

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