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Official data from INPI

"Extrusora de rosca múltipla corrotativa, método para reduzir fluxo de desaeração nesta e rosca para a mesma".

ArquivadaInvention PatentPCT · US1997017007

Application data

Number

PI9711397

Type

Invention Patent

Filing

09/23/1997

Publication

09/28/1999

PCT

US1997017007

Progress at the INPI

  1. Filing09/23/97
  2. Publication09/28/99
  3. Examination
  4. Allowance01/10/06
  5. Abandoned
  6. In force

The application was allowed on 01/10/2006 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 05/30/2006. 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

R. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

60/026,615 · 09/24/1996

Abstract

"EXTRUSORA DE ROSCA MÚLTIPLA CORROTATIVA, MÉTODO PARA REDUZIR FLUXO DE DESAERAÇÃO NESTA E ROSCA PARA A MESMA", compreendendo uma extrusora de rosca múltipla, na qual roscas emparelhadas, ou segmentos das mesmas, contêm números desiguais de palhetas; e uma rosca para uso em tal extrusora.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

05/30/2006

RPI 1847

Deferimento

#9.1

01/10/2006

RPI 1827

Notificação de entrada na fase nacional - PCT

#1.3

09/28/1999

RPI 1499

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