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Official data from INPI

APARELHO PORTATIL PARA TRATAR SUPERFICIES

ConcedidaInvention Patent

Application data

Number

PI7701246

Type

Invention Patent

Filing

03/01/1976

Publication

-

Progress at the INPI

  1. Filing03/01/76
  2. Publication
  3. Examination
  4. Allowance04/12/83
  5. Grant08/30/83
  6. Expired07/27/93

The letters patent expired on 07/27/1993: 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: 08/30/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WHEELABRATOR FRYE INC

Inventors

B. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1983

RPI 671

100

04/12/1983

RPI 651

120

10/05/1982

RPI 624

Petição de recurso

#12.2

03/16/1982

RPI 595

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

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