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Official data from INPI

APERFEICOAMENTOS EM SANFONAS PARA ONIBUS ARTICULADOS E OUTROS

ConcedidaUtility Model

Application data

Number

MU6100388

Type

Utility Model

Filing

03/25/1981

Publication

11/03/1982

Progress at the INPI

  1. Filing03/25/81
  2. Publication11/03/82
  3. Examination06/21/83
  4. Allowance10/09/84
  5. Grant05/28/85
  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.

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

H. O. (pessoa física)

Inventors

H. O. (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

Republicação - classificação IPC

#15.11

09/04/1984

RPI 724

Exigência - art. 36 da LPI

#6.1

03/07/1984

RPI 698

Solicitação de exame técnico

#4.1

06/21/1983

RPI 661

Publicação do pedido de patente

#3.1

11/03/1982

RPI 628

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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