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Official data from INPI

PROCESSO E APARELHO PARA SEPARAÇÃO DE GASES POR ABSORÇÃO COM OSCILAÇÃO DE PRESSÃO RÁPIDA

ArquivadaInvention Patent

Application data

Number

PI9104928

Type

Invention Patent

Filing

11/13/1991

Publication

06/23/1992

Progress at the INPI

  1. Filing11/13/91
  2. Publication06/23/92
  3. Abandoned07/19/94
  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.

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Latest action published by the INPI: 08/10/1999. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Air Products And Chemicals, Inc

US

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Inventors

S. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

615075 · 11/19/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

08/10/1999

RPI 1492

Exigência - art. 36 da LPI

#6.1

10/27/1998

RPI 1451

Solicitação de exame técnico

#4.1

07/19/1994

RPI 1233

Publicação do pedido de patente

#3.1

06/23/1992

RPI 1125

Pedido de patente depositado

#2.1

12/17/1991

RPI 1098

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