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Official data from INPI

ELEMENTO DE AQUECIMENTO PARA AQUECER AGENTES FLUÍDOS, ESPECIALMENTE GASOSOS

Em AnáliseInvention Patent

Application data

Number

PI8601072

Type

Invention Patent

Filing

03/13/1986

Publication

11/25/1986

Progress at the INPI

  1. Filing03/13/86
  2. Publication11/25/86
  3. Examination09/13/88
  4. Allowance09/04/90
  5. Grant03/26/91
  6. Terminated12/31/96

The patent was granted on 03/26/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

DE

See this company's full portfolio

Inventors

H. S. (pessoa física)

AT

J. D. (pessoa física)

DE

J. U. (pessoa física)

AT

Technical data

IPC Classification

Priority claims

DE

P 35 09 204.1 · 03/14/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/13/1988

RPI 934

Publicação do pedido de patente

#3.1

11/25/1986

RPI 840

Pedido de patente depositado

#2.1

08/26/1986

RPI 827

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

03/26/1991

RPI 1060

Notificação para pagamento de retribuição

#13.1

12/18/1990

RPI 1046

Deferimento

#9.1

09/04/1990

RPI 1031

Exigência - art. 36 da LPI

#6.1

02/13/1990

RPI 1006

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