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Official data from INPI

DISPOSITIVO PARA FORMACAO DE UNIOES EM UMA MAQUINA DE TECELAGEM CIRCULAR

ConcedidaInvention Patent

Application data

Number

PI7605878

Type

Invention Patent

Filing

09/04/1975

Publication

-

Progress at the INPI

  1. Filing09/04/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/29/81
  6. Expired07/20/93

The letters patent expired on 07/20/1993: 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: 12/29/1981. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

INDUPACK AG

Inventors

H. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1981

RPI 584

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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