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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8100209

Type

Invention Patent

Filing

01/15/1981

Publication

09/14/1982

Progress at the INPI

  1. Filing01/15/81
  2. Publication09/14/82
  3. Examination01/04/83
  4. Allowance08/21/84
  5. Grant05/28/85
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 09/01/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Tesc - Industria e Comercio Ltda.

SP, BR

Inventors

M. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

09/01/1987

RPI 880

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/21/1984

RPI 722

Solicitação de exame técnico

#4.1

01/04/1983

RPI 637

Publicação do pedido de patente

#3.1

09/14/1982

RPI 621

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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