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Official data from INPI

PROCESSO DE RESFRIAMENTO DO AR E SISTEMA DE RESFRIAMENTO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002668

Type

Invention Patent

Filing

06/05/1990

Publication

08/20/1991

Progress at the INPI

  1. Filing06/05/90
  2. Publication08/20/91
  3. Examination12/03/91
  4. Allowance07/19/94
  5. Grant03/01/95
  6. Expired05/25/10

The letters patent expired on 05/25/2010: 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: 05/25/2010. 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

07/362,966 · 06/07/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 05/06/2005

05/25/2010

RPI 2055

Concessão da patente

#16.1

03/01/1995

RPI 1265

Notificação para pagamento de retribuição

#13.1

11/15/1994

RPI 1250

Deferimento

#9.1

07/19/1994

RPI 1233

Exigência - art. 36 da LPI

#6.1

03/08/1994

RPI 1214

Solicitação de exame técnico

#4.1

12/03/1991

RPI 1096

Publicação do pedido de patente

#3.1

08/20/1991

RPI 1081

Pedido de patente depositado

#2.1

10/16/1990

RPI 1037

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