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Official data from INPI

PROCESSO PARA AQUECER FORNOS DE COQUEIFICAÇÃO.

ConcedidaInvention Patent

Application data

Number

PI8005493

Type

Invention Patent

Filing

08/29/1980

Publication

-

Progress at the INPI

  1. Filing08/29/80
  2. Publication
  3. Examination10/13/81
  4. Allowance04/16/85
  5. Grant06/24/86
  6. Terminated02/04/92

The patent was granted on 06/24/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dr. C. Otto & Comp. Gmbh

DE

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Inventors

W. F. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 29 47 447.3 · 11/24/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

9.1.3

10/22/1985

RPI 783

9.1.3

08/27/1985

RPI 775

Republicação - classificação IPC

#15.11

04/23/1985

RPI 757

Deferimento

#9.1

04/16/1985

RPI 756

Exigência - art. 36 da LPI

#6.1

02/07/1984

RPI 694

6.2

11/30/1982

RPI 632

Solicitação de exame técnico

#4.1

10/13/1981

RPI 573

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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