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Official data from INPI

PROCESSO PARA COMBINAR SISTEMAS DE REFRIGERAÇÃO POR ABSORÇÃO E DE REFRIGERAÇÃO MECÂNICO E SISTEMA DE REFRIGERAÇÃO COMBINADO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9102930

Type

Invention Patent

Filing

07/10/1991

Publication

06/16/1992

Progress at the INPI

  1. Filing07/10/91
  2. Publication06/16/92
  3. Examination09/29/92
  4. Allowance09/26/95
  5. Grant05/28/96
  6. Expired06/29/10

The letters patent expired on 06/29/2010: 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: 06/29/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Baltimore Aircoil Company, Inc

US

See this company's full portfolio

Inventors

W. O. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/604,577 · 10/26/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 10/07/2006

06/29/2010

RPI 2060

Concessão da patente

#16.1

05/28/1996

RPI 1330

Deferimento

#9.1

09/26/1995

RPI 1295

Solicitação de exame técnico

#4.1

09/29/1992

RPI 1139

Publicação do pedido de patente

#3.1

06/16/1992

RPI 1124

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