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

Processo e instalção para a produção de peças pré - fabricadas de concreto protendido com ligação imediata, principalmente de dormentes de concreto protendido.

Em AnáliseInvention Patent

Application data

Number

PI8104574

Type

Invention Patent

Filing

07/16/1981

Publication

04/06/1982

Progress at the INPI

  1. Filing07/16/81
  2. Publication04/06/82
  3. Examination08/24/82
  4. Allowance10/09/84
  5. Grant04/30/85
  6. Terminated06/21/88

The patent was granted on 04/30/1985 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dyckerhoff & Widmann Aktiengesellschaft

DE

Inventors

A. P. (pessoa física)

K. F. (pessoa física)

L. H. (pessoa física)

W. H. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 30 27 046,3 · 07/17/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

04/30/1985

RPI 758

Deferimento

#9.1

10/09/1984

RPI 729

Solicitação de exame técnico

#4.1

08/24/1982

RPI 618

Publicação do pedido de patente

#3.1

04/06/1982

RPI 598

Patent monitoring

Track this patent in real time.

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