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Official data from INPI

PARAFUSO FORMADOR DE ROSCA E TARRAXA DE LAMINACAO DE ROSCAS

ConcedidaInvention Patent

Application data

Number

PI7701408

Type

Invention Patent

Filing

03/10/1976

Publication

-

Progress at the INPI

  1. Filing03/10/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/24/86
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RES ENG & MFG

Inventors

M. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

15.14

03/11/1986

RPI 803

111

12/21/1982

RPI 635

Petição de recurso

#12.2

02/24/1982

RPI 592

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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