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Official data from INPI

COMPOSIÇÀO COMPLEXA, PROCESSO PARA HIDROPORMILAÇÀO E CARBONILAÇÀO DE OLEFINAS

ConcedidaInvention Patent

Application data

Number

PI7808272

Type

Invention Patent

Filing

12/15/1978

Publication

-

Progress at the INPI

  1. Filing12/15/78
  2. Publication
  3. Examination
  4. Allowance11/05/85
  5. Grant06/24/86
  6. Expired05/24/94

The letters patent expired on 05/24/1994: 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

L. K. (pessoa física)

S. T. (pessoa física)

US

T. P. (pessoa física)

US

Technical data

Priority claims

US

861916 · 12/19/1977

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Deferimento

#9.1

11/05/1985

RPI 785

Exigência - art. 36 da LPI

#6.1

03/08/1983

RPI 646

6.2

05/25/1982

RPI 605

Pedido de certificado de adição de invenção

#5.1

03/23/1982

RPI 596

Carta-patente expirada

#21.1

05/24/1994

RPI 1225

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