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

Dispositivo e aparelho de vedação e broca rotativa.

ConcedidaInvention Patent
Talk to an expert

Application data

Number

PI8103279

Type

Invention Patent

Filing

05/26/1981

Publication

02/16/1982
View on INPI

Progress at the INPI

  1. Filing05/26/81
  2. Publication02/16/82
  3. Examination07/05/83
  4. Allowance07/14/87
  5. Grant12/29/87
  6. Terminated08/30/94

The patent was granted on 12/29/1987 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: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Eduardo Barnetche - Gonzalez

Inventors

B. E. (pessoa física)

Technical data

IPC Classification

E21B 10/08

Priority claims

US

153.648 · 05/29/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1987

RPI 897

Notificação para pagamento de retribuição

#13.1

11/10/1987

RPI 890

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

09/09/1986

RPI 829

Exigência - art. 36 da LPI

#6.1

12/04/1984

RPI 737

Solicitação de exame técnico

#4.1

07/05/1983

RPI 663

Publicação do pedido de patente

#3.1

02/16/1982

RPI 591

Anuidade - prazo legal encerrado

#18.2

08/30/1994

RPI 1239

Related

Patent monitoring

Track this patent in real time.

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