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Official data from INPI

APERFEIÇOAMENTO EM UMA LIGAÇÃO DE ENGATE SEM FOLGA PARA UM VAGÃO FERROVIÁRIO, PEÇA LATERAL DE SOLEIRA E MEMBRO DE ENGATE APERFEIÇOADO

DeferidaInvention Patent

Application data

Number

PI8600100

Type

Invention Patent

Filing

01/13/1986

Publication

09/23/1986

Progress at the INPI

  1. Filing01/13/86
  2. Publication09/23/86
  3. Examination12/09/86
  4. Allowance11/21/89
  5. Grant06/26/90
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Amsted Industries Incorporated

US

See this company's full portfolio

Inventors

J. K. (pessoa física)

US

R. A. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

691,077 · 01/14/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/21/1989

RPI 996

Solicitação de exame técnico

#4.1

12/09/1986

RPI 842

Publicação do pedido de patente

#3.1

09/23/1986

RPI 831

Pedido de patente depositado

#2.1

04/22/1986

RPI 809

Carta-patente expirada

#21.1

Patente extinta em 13/01/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

06/26/1990

RPI 1024

Notificação para pagamento de retribuição

#13.1

03/27/1990

RPI 1011

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