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Official data from INPI

CONJUNTO PARA FIXACAO DE TRILHO POR CRAVACAO,GRAMPO DE TRILHO DE FERROVIA E COXIM DE TRILHO

ConcedidaInvention Patent

Application data

Number

PI7902934

Type

Invention Patent

Filing

08/02/1978

Publication

-

Progress at the INPI

  1. Filing08/02/78
  2. Publication
  3. Examination03/16/82
  4. Allowance11/29/83
  5. Grant05/29/84
  6. Expired07/26/94

The letters patent expired on 07/26/1994: 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: 05/29/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TRUE TEMPER CORP

Inventors

F. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/29/1984

RPI 710

Notificação para pagamento de retribuição

#13.1

03/20/1984

RPI 700

Deferimento

#9.1

11/29/1983

RPI 684

14.1

06/21/1983

RPI 661

Republicação - classificação IPC

#15.11

02/08/1983

RPI 642

Conhecimento de parecer técnico

#7.1

11/03/1982

RPI 628

Solicitação de exame técnico

#4.1

03/16/1982

RPI 595

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

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