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Official data from INPI

MATERIAL DE FRICÇÃO, E, PROCESSO PARA SUA FABRICAÇÃO

DeferidaInvention Patent

Application data

Number

PI8305810

Type

Invention Patent

Filing

10/20/1983

Publication

05/29/1984

Progress at the INPI

  1. Filing10/20/83
  2. Publication05/29/84
  3. Examination08/05/86
  4. Allowance08/15/89
  5. Grant03/20/90
  6. Terminated05/09/95

The patent was granted on 03/20/1990 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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Raymark Industries, Inc.

US

Inventors

G. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

435.450 · 10/21/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

08/15/1989

RPI 982

Exigência - art. 36 da LPI

#6.1

01/17/1989

RPI 952

Pedido de certificado de adição de invenção

#5.1

12/09/1986

RPI 842

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

05/29/1984

RPI 710

Pedido de patente depositado

#2.1

01/03/1984

RPI 689

Anuidade - prazo legal encerrado

#18.2

05/09/1995

RPI 1275

Concessão da patente

#16.1

03/20/1990

RPI 1010

Notificação para pagamento de retribuição

#13.1

01/02/1990

RPI 1000

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