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Official data from INPI

PROCESSO E DISPOSITIVO PARA FABRICACAO DE FOLHAS COLANTES DE REVESTIMENTO E ISOLAMENTO

Em AnáliseInvention Patent

Application data

Number

PI7603872

Type

Invention Patent

Filing

06/23/1975

Publication

-

Progress at the INPI

  1. Filing06/23/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant11/10/81
  6. Terminated11/17/87

The patent was granted on 11/10/1981 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BISCHOF & KLEIN

WINDMOELLER & HOELSCHER

Inventors

B. H. (pessoa física)

K. F. (pessoa física)

S. H. (pessoa física)

U. H. (pessoa física)

Z. W. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/17/1987

RPI 891

201

06/07/1983

RPI 659

Pedido de licença voluntária

#17.1

12/14/1982

RPI 634

Concessão da patente

#16.1

11/10/1981

RPI 577

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