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Official data from INPI

ESCADAS DE INCENDIO

Arquivada/ExtintaUtility Model

Application data

Number

MU5600549

Type

Utility Model

Filing

05/11/1976

Publication

-

Progress at the INPI

  1. Filing05/11/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/29/81
  6. Expired07/15/86

The letters patent expired on 07/15/1986: 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: 07/15/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. M. (pessoa física)

Inventors

W. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

07/15/1986

RPI 821

Cessão de direito de exploração

#22.1

02/26/1985

RPI 749

Concessão da patente

#16.1

12/29/1981

RPI 584

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