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Official data from INPI

SISTEMA PARA PRÉ-AQUECIMENTO DE AR DE COMBUSTÃO

Em AnáliseInvention Patent

Application data

Number

PI8703986

Type

Invention Patent

Filing

08/05/1987

Publication

04/05/1988

Progress at the INPI

  1. Filing08/05/87
  2. Publication04/05/88
  3. Examination09/27/88
  4. Allowance10/09/90
  5. Grant04/30/91
  6. Terminated10/17/95

The patent was granted on 04/30/1991 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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Morgan Construction Company

US

See this company's full portfolio

Inventors

D. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

893.819 · 08/06/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/27/1988

RPI 936

Publicação do pedido de patente

#3.1

04/05/1988

RPI 911

Pedido de patente depositado

#2.1

10/20/1987

RPI 887

Anuidade - prazo legal encerrado

#18.2

10/17/1995

RPI 1298

Concessão da patente

#16.1

04/30/1991

RPI 1065

Notificação para pagamento de retribuição

#13.1

01/22/1991

RPI 1051

Deferimento

#9.1

10/09/1990

RPI 1036

Exigência - art. 36 da LPI

#6.1

03/20/1990

RPI 1010

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