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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8101460

Type

Invention Patent

Filing

02/18/1981

Publication

10/26/1982

Progress at the INPI

  1. Filing02/18/81
  2. Publication10/26/82
  3. Examination12/26/84
  4. Allowance02/12/86
  5. Grant08/26/86
  6. Expired09/24/96

The letters patent expired on 09/24/1996: 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: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Westinghouse do Brasil S/A

RJ, BR

See this company's full portfolio

Inventors

O. I. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/12/1986

RPI 799

Republicação - classificação IPC

#15.11

08/06/1985

RPI 772

Exigência - art. 36 da LPI

#6.1

07/23/1985

RPI 770

Solicitação de exame técnico

#4.1

12/26/1984

RPI 740

Publicação do pedido de patente

#3.1

10/26/1982

RPI 627

Carta-patente expirada

#21.1

09/24/1996

RPI 1347

Pedido de licença compulsória

#20.1

10/27/1992

RPI 1143

Pedido de licença compulsória

#20.1

07/24/1990

RPI 1025

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