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Official data from INPI

SISTEMA DE CRUZAMENTO DE NIVEL DE LINHAS FERREAS

ConcedidaInvention Patent

Application data

Number

PI8003162

Type

Invention Patent

Filing

05/22/1979

Publication

-

Progress at the INPI

  1. Filing05/22/79
  2. Publication
  3. Examination11/23/82
  4. Allowance10/09/84
  5. Grant05/28/85
  6. Terminated02/04/92

The patent was granted on 05/28/1985 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: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. P. (pessoa física)

Inventors

K. J. (pessoa física)

L. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

02/20/1985

RPI 748

Deferimento

#9.1

10/09/1984

RPI 729

Exigência - art. 36 da LPI

#6.1

05/02/1984

RPI 706

Republicação - classificação IPC

#15.11

03/13/1984

RPI 699

Conhecimento de parecer técnico

#7.1

12/06/1983

RPI 685

Solicitação de exame técnico

#4.1

11/23/1982

RPI 631

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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