(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PROCESSO PARA INFLAMAR UM FORNO E APARELHO QUEIMADOR PARA SER USADO COM OXIGÊNIO COMO O GÁS OXIDANTE PARA INFLAMAR UM FORNO.

ConcedidaInvention Patent

Application data

Number

PI8102112

Type

Invention Patent

Filing

04/08/1981

Publication

10/13/1981

Progress at the INPI

  1. Filing04/08/81
  2. Publication10/13/81
  3. Examination04/26/83
  4. Allowance07/31/84
  5. Grant02/26/85
  6. Expired10/01/96

The letters patent expired on 10/01/1996: 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: 02/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Praxair Technology, Inc.

US

U. C. (pessoa física)

US

See this company's full portfolio

Inventors

A. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

138.759 · 04/10/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

11/13/1984

RPI 734

Deferimento

#9.1

07/31/1984

RPI 719

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

04/26/1983

RPI 653

Publicação do pedido de patente

#3.1

10/13/1981

RPI 573

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

Pedido de licença compulsória

#20.1

11/01/1994

RPI 1248

20.4

10/25/1994

RPI 1247

Related

From the same holder

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.