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Official data from INPI

DISPOSITIVO DE ENGATE GIRATORIO PARA CARRO FEROVIARIO

Em AnáliseInvention Patent

Application data

Number

PI8105771

Type

Invention Patent

Filing

09/12/1980

Publication

05/25/1982

Progress at the INPI

  1. Filing09/12/80
  2. Publication05/25/82
  3. Examination07/10/84
  4. Allowance08/13/85
  5. Grant03/25/86
  6. Terminated05/24/88

The patent was granted on 03/25/1986 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: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MIDLAND ROSS CORP

See this company's full portfolio

Inventors

H. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/24/1988

RPI 918

Concessão da patente

#16.1

03/25/1986

RPI 805

Notificação para pagamento de retribuição

#13.1

12/17/1985

RPI 791

Deferimento

#9.1

08/13/1985

RPI 773

8.1

04/23/1985

RPI 757

Solicitação de exame técnico

#4.1

07/10/1984

RPI 716

Publicação do pedido de patente

#3.1

05/25/1982

RPI 605

Pedido de patente depositado

#2.1

10/20/1981

RPI 574

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