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Official data from INPI

PLACA DE APOIO PARA TRILHOS FERROVIÁRIOS.

Em AnáliseUtility Model
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Application data

Number

MU5901148

Type

Utility Model

Filing

08/24/1979

Publication

-
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Progress at the INPI

  1. Filing08/24/79
  2. Publication
  3. Examination
  4. Allowance07/27/82
  5. Grant11/27/84
  6. Expired12/07/93

The letters patent expired on 12/07/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 02/09/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fundição Tupy S/A

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Inventors

R. O. (pessoa física)

S. L. (pessoa física)

Technical data

IPC Classification

E01B 9/40

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

02/09/1988

RPI 903

Pedido de licença compulsória

#20.1

01/26/1988

RPI 901

20.4

01/26/1988

RPI 901

320

07/21/1987

RPI 874

300

09/30/1986

RPI 832

201

06/03/1986

RPI 815

Pedido de licença voluntária

#17.1

01/07/1986

RPI 794

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

10/30/1984

RPI 732

110

09/04/1984

RPI 724

120

05/15/1984

RPI 708

Recurso

#12.1

11/16/1982

RPI 630

Deferimento

#9.1

07/27/1982

RPI 614

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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