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Official data from INPI

COMPOSICAO LUBRIFICANTE;E CONCENTRADO PARA FORMULACAO DE COMPOSICOES LUBRIFICANTES

Em AnáliseInvention Patent

Application data

Number

PI7800984

Type

Invention Patent

Filing

02/25/1977

Publication

-

Progress at the INPI

  1. Filing02/25/77
  2. Publication
  3. Examination
  4. Allowance06/05/84
  5. Grant03/17/87
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 05/09/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LUBRIZOL CORP

See this company's full portfolio

Inventors

D. K. (pessoa física)

M. N. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

300

05/09/1989

RPI 968

201

01/10/1989

RPI 951

Pedido de licença voluntária

#17.1

05/17/1988

RPI 917

201

04/05/1988

RPI 911

Pedido de licença voluntária

#17.1

10/20/1987

RPI 887

Concessão da patente

#16.1

03/17/1987

RPI 856

110

08/26/1986

RPI 827

Recurso

#12.1

09/25/1984

RPI 727

Deferimento

#9.1

06/05/1984

RPI 711

Exigência - art. 36 da LPI

#6.1

11/22/1983

RPI 683

Exigência - art. 36 da LPI

#6.1

02/01/1983

RPI 641

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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