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

ARMAÇÃO LATERAL DE TRUQUE DE VAGÃO FERROVIÁRIO.

Em AnáliseInvention Patent

Application data

Number

PI7906415

Type

Invention Patent

Filing

10/04/1979

Publication

-

Progress at the INPI

  1. Filing10/04/79
  2. Publication
  3. Examination
  4. Allowance11/13/84
  5. Grant05/28/85
  6. Expired04/25/95

The letters patent expired on 04/25/1995: 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: 12/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dresser Industries, Inc

US

See this company's full portfolio

Inventors

C. G. (pessoa física)

Technical data

IPC Classification

Priority claims

US

964.030 · 11/27/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

12/02/1986

RPI 841

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

03/26/1985

RPI 753

Deferimento

#9.1

11/13/1984

RPI 734

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

Patent monitoring

Track this patent in real time.

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