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Official data from INPI

CHAPA DE CONSTRUCAO COMPOSTA DE BALANCO PARA PISOS DUPLOS DESTINADOS PARA A CLIMATIZACAO DE RECINTOS

ConcedidaInvention Patent
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Application data

Number

PI8007225

Type

Invention Patent

Filing

11/07/1979

Publication

-
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Progress at the INPI

  1. Filing11/07/79
  2. Publication
  3. Examination
  4. Allowance07/19/83
  5. Grant01/31/84
  6. Expired12/26/95

The letters patent expired on 12/26/1995: 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: 09/18/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mero-Werke Dr. Ing. Max Mengeringhausen GmbH & Co.

DE

Inventors

H. W. (pessoa física)

K. H. (pessoa física)

Technical data

IPC Classification

E04B 5/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

09/18/1984

RPI 726

Republicação - classificação IPC

#15.11

02/07/1984

RPI 694

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Deferimento

#9.1

07/19/1983

RPI 665

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

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