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Official data from INPI

APERFEICOAMENTOS COM RELACAO A INTERRUPTORES ELETRICOS

Em AnáliseInvention Patent

Application data

Number

PI7708162

Type

Invention Patent

Filing

12/09/1976

Publication

-

Progress at the INPI

  1. Filing12/09/76
  2. Publication
  3. Examination
  4. Allowance12/01/81
  5. Grant
  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.

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Latest action published by the INPI: 08/19/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NEIMAN SA

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

08/19/1986

RPI 826

Notificação para pagamento de retribuição

#13.1

04/13/1982

RPI 599

Deferimento

#9.1

12/01/1981

RPI 580

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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