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

APERFEIÇOAMENTO EM GRAMPO ELÁSTICO DE TRILHO FERROVIÁRIO.

IndeferidaInvention Patent

Application data

Number

PI8108095

Type

Invention Patent

Filing

12/14/1981

Publication

09/13/1983

Progress at the INPI

Under appeal
  1. Filing12/14/81
  2. Publication09/13/83
  3. Examination01/02/85
  4. Refused02/17/87
  5. Grant
  6. In force

The application was refused by the INPI on 02/17/1987. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 02/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Estel Hoest Indústria de Molas Ltda

Inventors

I. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

02/17/1987

RPI 852

Conhecimento de parecer técnico

#7.1

08/27/1985

RPI 775

Pedido de certificado de adição de invenção

#5.1

05/07/1985

RPI 759

Solicitação de exame técnico

#4.1

01/02/1985

RPI 741

Publicação do pedido de patente

#3.1

09/13/1983

RPI 673

Pedido de patente depositado

#2.1

02/09/1982

RPI 590

Patent monitoring

Track this patent in real time.

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