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Official data from INPI

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Em AnáliseInvention Patent
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Application data

Number

PI8004252

Type

Invention Patent

Filing

07/07/1980

Publication

03/09/1982
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Progress at the INPI

  1. Filing07/07/80
  2. Publication03/09/82
  3. Examination07/27/82
  4. Allowance02/21/84
  5. Grant11/27/84
  6. Expired10/03/95

The letters patent expired on 10/03/1995: 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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Vulcouro S/A Indústria e Comércio

SP, BR

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Inventors

D. J. (pessoa física)

Technical data

IPC Classification

B26F 1/24B31F 7/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

11/21/1989

RPI 996

Cessão de direito de exploração

#22.1

12/10/1985

RPI 790

Concessão da patente

#16.1

11/27/1984

RPI 736

Republicação - classificação IPC

#15.11

09/18/1984

RPI 726

Notificação para pagamento de retribuição

#13.1

06/12/1984

RPI 712

Deferimento

#9.1

02/21/1984

RPI 696

Republicação - classificação IPC

#15.11

01/10/1984

RPI 690

Exigência - art. 36 da LPI

#6.1

09/06/1983

RPI 672

Solicitação de exame técnico

#4.1

07/27/1982

RPI 614

Publicação do pedido de patente

#3.1

03/09/1982

RPI 594

Carta-patente expirada

#21.1

10/03/1995

RPI 1296

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