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Official data from INPI

TROCADOR DE CALOR EM PLACAS

Arquivada/ExtintaInvention PatentPCT · SE1989000263

Application data

Number

PI8904798

Type

Invention Patent

Filing

05/12/1989

Publication

08/21/1990

PCT

SE1989000263

Progress at the INPI

  1. Filing05/12/89
  2. Publication08/21/90
  3. Examination02/11/92
  4. Allowance08/31/93
  5. Grant04/26/94
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 12/22/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alfa-Laval Thermal AB

SE

See this company's full portfolio

Inventors

J. A. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8801946-8 · 05/25/1988

SE

8801961-7 · 05/26/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 12/05/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

04/26/1994

RPI 1221

Deferimento

#9.1

08/31/1993

RPI 1187

Exigência - art. 36 da LPI

#6.1

03/09/1993

RPI 1162

Solicitação de exame técnico

#4.1

02/11/1992

RPI 1106

Notificação de entrada na fase nacional - PCT

#1.3

08/21/1990

RPI 1029

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