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Official data from INPI

PROCESSO PARA A PREPARACAO DE UMA PECA DE FERRO SINTERIZADA ENDURECIDA SUPERFICIALMENTE E PECAS DE FERRO SINTERIZADAS

ConcedidaInvention Patent

Application data

Number

PI8106065

Type

Invention Patent

Filing

09/23/1980

Publication

06/08/1982

Progress at the INPI

  1. Filing09/23/80
  2. Publication06/08/82
  3. Examination09/21/82
  4. Allowance01/15/85
  5. Grant07/30/85
  6. Terminated09/25/90

The patent was granted on 07/30/1985 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: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SCHUNK & EBE GMBH

Inventors

B. W. (pessoa física)

D. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

05/07/1985

RPI 759

Deferimento

#9.1

01/15/1985

RPI 743

Republicação - classificação IPC

#15.11

01/08/1985

RPI 742

Exigência - art. 36 da LPI

#6.1

07/10/1984

RPI 716

Pedido de certificado de adição de invenção

#5.1

03/08/1983

RPI 646

Solicitação de exame técnico

#4.1

09/21/1982

RPI 622

Publicação do pedido de patente

#3.1

06/08/1982

RPI 607

Pedido de patente depositado

#2.1

11/03/1981

RPI 576

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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