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Official data from INPI

ANEL DE VEDAÇÃO.

ConcedidaInvention Patent

Application data

Number

PI8007807

Type

Invention Patent

Filing

11/28/1980

Publication

-

Progress at the INPI

  1. Filing11/28/80
  2. Publication
  3. Examination10/27/81
  4. Allowance09/25/84
  5. Grant02/25/86
  6. Expired12/26/95

The letters patent expired on 12/26/1995: 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: 02/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. F. (pessoa física)

DE

C. F. (pessoa física)

DE

Inventors

A. E. (pessoa física)

H. H. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 29 49 839.3 · 12/12/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/25/1986

RPI 801

Notificação para pagamento de retribuição

#13.1

12/03/1985

RPI 789

110

10/08/1985

RPI 781

Recurso

#12.1

01/15/1985

RPI 743

Deferimento

#9.1

09/25/1984

RPI 727

Exigência - art. 36 da LPI

#6.1

03/07/1984

RPI 698

Pedido de certificado de adição de invenção

#5.1

04/13/1982

RPI 599

Solicitação de exame técnico

#4.1

10/27/1981

RPI 575

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

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