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Official data from INPI

SAPATA DE FREIO E COMPOSIÇÃO APERFEIÇOADA PARA SAPATA DE FREIO.

ConcedidaInvention Patent

Application data

Number

PI8000890

Type

Invention Patent

Filing

02/13/1980

Publication

-

Progress at the INPI

  1. Filing02/13/80
  2. Publication
  3. Examination10/13/81
  4. Allowance01/31/84
  5. Grant08/28/84
  6. In force02/13/00

The patent is in force and subject to a compulsory licence request: third parties have asked for authorisation to exploit the technology.

Protection valid until:02/13/2000

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Latest action published by the INPI: 08/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Amsted Industries Incorporated

US

Anchor Brake Shoe Company

US

See this company's full portfolio

Inventors

L. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

05/15/1984

RPI 708

Deferimento

#9.1

01/31/1984

RPI 693

Exigência - art. 36 da LPI

#6.1

04/26/1983

RPI 653

Solicitação de exame técnico

#4.1

10/13/1981

RPI 573

Pedido de licença compulsória

#20.1

11/14/1995

RPI 1302

20.7

08/29/1995

RPI 1291

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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