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Official data from INPI

APERFEICOAMENTO EM ARMACAO PARA CONFINAR UM COLCHAO ENCHIDO COM AGUA DE UM LEITO DE COLCHAO DE AGUA E APERFEICOAMENTO EM LEITO DOTADO DE COLCHAO DE AGUA

Em AnáliseInvention Patent

Application data

Number

PI7703297

Type

Invention Patent

Filing

05/24/1976

Publication

-

Progress at the INPI

  1. Filing05/24/76
  2. Publication
  3. Examination
  4. Allowance09/08/82
  5. Grant03/29/83
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 08/19/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WATERCLOUD BED CO

Inventors

L. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

08/19/1986

RPI 826

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

09/08/1982

RPI 620

Exigência - art. 36 da LPI

#6.1

02/16/1982

RPI 591

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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