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

MICRO-UNIDADE HIDRÁULICA DE AVANÇO

Em AnáliseInvention Patent

Application data

Number

PI8002625

Type

Invention Patent

Filing

04/29/1980

Publication

12/15/1981

Progress at the INPI

  1. Filing04/29/80
  2. Publication12/15/81
  3. Examination04/06/82
  4. Allowance06/19/84
  5. Grant02/26/85
  6. Expired06/13/95

The letters patent expired on 06/13/1995: 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: 05/26/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Brevet Burkhardt - Máquinas de Precisão Ltda.

SP, BR

See this company's full portfolio

Inventors

K. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

05/26/1987

RPI 866

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

06/19/1984

RPI 713

8.1

01/24/1984

RPI 692

Exigência - art. 36 da LPI

#6.1

06/07/1983

RPI 659

Solicitação de exame técnico

#4.1

04/06/1982

RPI 598

Publicação do pedido de patente

#3.1

12/15/1981

RPI 582

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

Patent monitoring

Track this patent in real time.

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