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Official data from INPI

PROCESSO PARA DETERMINAÇÃO DO COEFICIENTE DE EXPANSÃO TÉRMICA DE COQUE

ArquivadaInvention Patent

Application data

Number

PI9104805

Type

Invention Patent

Filing

11/04/1991

Publication

06/23/1992

Progress at the INPI

  1. Filing11/04/91
  2. Publication06/23/92
  3. Abandoned08/23/94
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/16/1999. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Standard Oil Company

US

See this company's full portfolio

Inventors

H. A. (pessoa física)

US

J. H. (pessoa física)

US

S. P. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

612.050 · 11/09/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

11/16/1999

RPI 1506

Exigência - art. 36 da LPI

#6.1

04/27/1999

RPI 1477

Solicitação de exame técnico

#4.1

08/23/1994

RPI 1238

Publicação do pedido de patente

#3.1

06/23/1992

RPI 1125

Pedido de patente depositado

#2.1

12/10/1991

RPI 1097

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