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Official data from INPI

PARAFUSO COM PINO NA CABEÇA CAVADA E SUA RESPECTIVA CHAVE

ConcedidaUtility Model

Application data

Number

MU5900137

Type

Utility Model

Filing

02/05/1979

Publication

-

Progress at the INPI

  1. Filing02/05/79
  2. Publication
  3. Examination
  4. Allowance02/09/88
  5. Grant08/29/89
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dersa-Desenvolvimento Rodoviário S.A.

SP, BR

Inventors

N. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

01/17/1989

RPI 952

110

10/25/1988

RPI 940

Recurso

#12.1

05/31/1988

RPI 919

Deferimento

#9.1

02/09/1988

RPI 903

Exigência - art. 36 da LPI

#6.1

06/23/1987

RPI 870

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

137

07/31/1990

RPI 1026

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