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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8005906

Type

Invention Patent

Filing

09/16/1980

Publication

-
View on INPI

Progress at the INPI

  1. Filing09/16/80
  2. Publication
  3. Examination
  4. Allowance10/06/87
  5. Grant05/31/88
  6. Expired11/07/95

The letters patent expired on 11/07/1995: 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Oxy Metal Industries Corporation

US

Inventors

T. L. (pessoa física)

Technical data

IPC Classification

C25F 3/02C25F 5/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

02/09/1988

RPI 903

Deferimento

#9.1

10/06/1987

RPI 885

Exigência - art. 36 da LPI

#6.1

05/19/1987

RPI 865

Exigência - art. 36 da LPI

#6.1

11/04/1986

RPI 837

Exigência - art. 36 da LPI

#6.1

06/26/1984

RPI 714

Republicação - classificação IPC

#15.11

02/21/1984

RPI 696

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Republicação - classificação IPC

#15.11

01/18/1983

RPI 639

Carta-patente expirada

#21.1

11/07/1995

RPI 1301

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