(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

Processo para separação criogênica

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002248

Type

Invention Patent

Filing

05/14/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/14/90
  2. Publication08/13/91
  3. Examination03/09/93
  4. Allowance05/27/97
  5. Grant07/28/98
  6. Expired01/15/13

The letters patent expired on 01/15/2013: 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: 01/15/2013. 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

J. Z. (pessoa física)

US

J. H. (pessoa física)

US

R. P. (pessoa física)

US

Technical data

Priority claims

US

351.807 · 05/15/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 14/05/2010

01/15/2013

RPI 2193

Concessão da patente

#16.1

07/28/1998

RPI 1440

Deferimento

#9.1

05/27/1997

RPI 1382

Exigência - art. 36 da LPI

#6.1

12/24/1996

RPI 1360

14.4

06/22/1993

RPI 1177

14.7

06/22/1993

RPI 1177

Solicitação de exame técnico

#4.1

03/09/1993

RPI 1162

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

09/25/1990

RPI 1034

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.