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Official data from INPI

COMPRESSOR CENTRÍFUGO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9001081

Type

Invention Patent

Filing

03/07/1990

Publication

02/26/1991

Progress at the INPI

  1. Filing03/07/90
  2. Publication02/26/91
  3. Examination06/09/92
  4. Allowance06/04/96
  5. Grant04/29/97
  6. Expired05/11/10

The letters patent expired on 05/11/2010: 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: 05/11/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Praxair Technology, Inc.

US

Union Carbide Industrial Gases Technology Corporation

US

See this company's full portfolio

Inventors

A. E. (pessoa física)

US

J. W. (pessoa física)

US

R. S. (pessoa física)

US

T. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

320.605 · 03/08/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 07/03/2005

05/11/2010

RPI 2053

Concessão da patente

#16.1

04/29/1997

RPI 1378

Deferimento

#9.1

06/04/1996

RPI 1331

Retificação

#15.6

07/11/1995

RPI 1284

15.15

01/31/1995

RPI 1261

Retificação

#15.3

07/26/1994

RPI 1234

14.4

06/22/1993

RPI 1177

14.7

06/22/1993

RPI 1177

Solicitação de exame técnico

#4.1

06/09/1992

RPI 1123

Publicação do pedido de patente

#3.1

02/26/1991

RPI 1056

Pedido de patente depositado

#2.1

05/29/1990

RPI 1020

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