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Official data from INPI

SISTEMA AUTOMÁTICO DE TEMPORIZAÇÃO DE AQUECIMENTO EM ESTUFAS

Em AnáliseInvention Patent

Application data

Number

PI8801787

Type

Invention Patent

Filing

04/14/1988

Publication

12/13/1988

Progress at the INPI

  1. Filing04/14/88
  2. Publication12/13/88
  3. Examination12/20/88
  4. Allowance11/16/93
  5. Grant05/31/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 12/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. R. (pessoa física)

SP, BR

Inventors

D. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/20/1988

RPI 948

Publicação antecipada

#3.2

12/13/1988

RPI 947

Pedido de patente depositado

#2.1

09/20/1988

RPI 935

Carta-patente expirada

#21.1

Patente extinta em 14/04/2003

09/02/2008

RPI 1965

Pedido de licença compulsória

#20.1

12/06/1994

RPI 1253

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

11/16/1993

RPI 1198

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