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Official data from INPI

COMPOSIÇÃO LUBRIFICANTE E COMPOSIÇÃO FLUIDA.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9000106

Type

Invention Patent

Filing

01/09/1990

Publication

10/16/1990

Progress at the INPI

  1. Filing01/09/90
  2. Publication10/16/90
  3. Examination03/02/93
  4. Allowance11/11/97
  5. Grant08/25/98
  6. Expired01/02/13

The letters patent expired on 01/02/2013: 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: 01/02/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

E. W. (pessoa física)

US

P. M. (pessoa física)

US

Technical data

Priority claims

US

295.612 · 01/10/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 09/01/2010

01/02/2013

RPI 2191

Concessão da patente

#16.1

08/25/1998

RPI 1444

Deferimento

#9.1

11/11/1997

RPI 1406

Exigência - art. 36 da LPI

#6.1

01/28/1997

RPI 1365

Solicitação de exame técnico

#4.1

03/02/1993

RPI 1161

Publicação do pedido de patente

#3.1

10/16/1990

RPI 1037

Pedido de patente depositado

#2.1

04/10/1990

RPI 1013

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