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Official data from INPI

QUEIMADOR DE COMBUSTAO INTERNA E INSTALACAO PARA FORMACAO DE FIBRAS MINERAIS

ConcedidaInvention Patent

Application data

Number

PI8301730

Type

Invention Patent

Filing

04/05/1983

Publication

12/13/1983

Progress at the INPI

  1. Filing04/05/83
  2. Publication12/13/83
  3. Examination01/28/86
  4. Allowance09/08/87
  5. Grant05/31/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. S. (pessoa física)

FR

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Inventors

G. R. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

01/26/1988

RPI 901

Deferimento

#9.1

09/08/1987

RPI 881

Exigência - art. 36 da LPI

#6.1

10/07/1986

RPI 833

Solicitação de exame técnico

#4.1

01/28/1986

RPI 797

Publicação do pedido de patente

#3.1

12/13/1983

RPI 686

Pedido de patente depositado

#2.1

05/17/1983

RPI 656

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: F23D 21/00; F23C 15/00; F23D 14/00; F23D 14/12; F23D 14/20; F23D 14/58; F23D 14/62; F23L 3/00; F23R 3/42; F23R 3/54; F23D 14/46; F23D 14/48; F23R 3/00.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 05/04/98

07/01/2008

RPI 1956

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