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Official data from INPI

Aplicação de peróxido de zinco.

ConcedidaInvention Patent
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Application data

Number

PI8008312

Type

Invention Patent

Filing

12/18/1980

Publication

-
View on INPI

Progress at the INPI

  1. Filing12/18/80
  2. Publication
  3. Examination09/06/83
  4. Allowance11/16/88
  5. Grant08/29/89
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. A. (pessoa física)

DE

Inventors

H. R. (pessoa física)

R. K. (pessoa física)

Technical data

IPC Classification

C01B 15/047C06B 33/00

Priority claims

DE

P 29 52 069.2 · 12/22/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

01/17/1989

RPI 952

100

11/16/1988

RPI 943

Recurso

#12.1

02/09/1988

RPI 903

Deferimento

#9.1

11/03/1987

RPI 889

Exigência - art. 36 da LPI

#6.1

04/22/1987

RPI 861

Conhecimento de parecer técnico

#7.1

02/26/1985

RPI 749

Republicação - classificação IPC

#15.11

12/11/1984

RPI 738

Exigência - art. 36 da LPI

#6.1

08/21/1984

RPI 722

Solicitação de exame técnico

#4.1

09/06/1983

RPI 672

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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