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

PROCESSO E DISPOSITIVO PARA TRATAMENTO DE TUBOS DE COBRE

ConcedidaInvention Patent

Application data

Number

PI8007567

Type

Invention Patent

Filing

05/10/1980

Publication

07/20/1982

Progress at the INPI

  1. Filing05/10/80
  2. Publication07/20/82
  3. Examination09/18/84
  4. Allowance08/20/85
  5. Grant04/29/86
  6. Expired12/26/95

The letters patent expired on 12/26/1995: 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kabel - Und Metallwerke Gutehoffnungshuette AG

DE

Inventors

U. P. (pessoa física)

U. O. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

12/24/1985

RPI 792

Deferimento

#9.1

08/20/1985

RPI 774

Exigência - art. 36 da LPI

#6.1

02/26/1985

RPI 749

Solicitação de exame técnico

#4.1

09/18/1984

RPI 726

Publicação do pedido de patente

#3.1

07/20/1982

RPI 613

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

Patent monitoring

Track this patent in real time.

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