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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8100438

Type

Invention Patent

Filing

01/27/1981

Publication

-

Progress at the INPI

  1. Filing01/27/81
  2. Publication
  3. Examination12/08/81
  4. Allowance12/26/84
  5. Grant03/25/86
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Lohr & Bromkamp GMBH.

DE

See this company's full portfolio

Inventors

D. K. (pessoa física)

W. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

201

12/29/1987

RPI 897

201

10/27/1987

RPI 888

Pedido de licença voluntária

#17.1

05/26/1987

RPI 866

18.8

05/26/1987

RPI 866

Anuidade - prazo legal encerrado

#18.2

03/17/1987

RPI 856

Concessão da patente

#16.1

03/25/1986

RPI 805

110

11/26/1985

RPI 788

Recurso

#12.1

04/30/1985

RPI 758

Deferimento

#9.1

12/26/1984

RPI 740

Exigência - art. 36 da LPI

#6.1

06/12/1984

RPI 712

Pedido de certificado de adição de invenção

#5.1

05/18/1982

RPI 604

Solicitação de exame técnico

#4.1

12/08/1981

RPI 581

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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