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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8103426

Type

Invention Patent

Filing

06/01/1981

Publication

01/11/1983

Progress at the INPI

  1. Filing06/01/81
  2. Publication01/11/83
  3. Examination06/07/83
  4. Allowance05/13/86
  5. Grant12/30/86
  6. Expired10/08/96

The letters patent expired on 10/08/1996: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 12/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pinhalense S.A. Máquinas Agrícolas.

SP, BR

See this company's full portfolio

Inventors

P. O. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/30/1986

RPI 845

Notificação para pagamento de retribuição

#13.1

09/02/1986

RPI 828

Deferimento

#9.1

05/13/1986

RPI 812

14.4

05/07/1985

RPI 759

Solicitação de exame técnico

#4.1

06/07/1983

RPI 659

Publicação do pedido de patente

#3.1

01/11/1983

RPI 638

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

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