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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE OLEFINAS

PublicadaInvention Patent

Application data

Number

PI8806210

Type

Invention Patent

Filing

11/25/1988

Publication

08/15/1989

Progress at the INPI

  1. Filing11/25/88
  2. Publication08/15/89
  3. Examination09/18/90
  4. Allowance04/09/96
  5. Grant03/25/97
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. P. (pessoa física)

US

U.O.P.

US

Inventors

J. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

125.226 · 11/25/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/15/1989

RPI 982

Pedido de patente depositado

#2.1

04/11/1989

RPI 964

Carta-patente expirada

#21.1

Patente extinta em 25/11/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

03/25/1997

RPI 1373

Republicação - classificação IPC

#15.11

02/25/1997

RPI 1369

Deferimento

#9.1

04/09/1996

RPI 1323

Exigência - art. 36 da LPI

#6.1

06/06/1995

RPI 1279

Solicitação de exame técnico

#4.1

09/18/1990

RPI 1033

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